Repository: gohugoio/hugo (language: go)

Issue:
PostCSS error reporting does not work very well on Windows
At least not on the GitHub test environment, as I have now added some tests that fail. Looks like PostCSS is adding some ansi colours to the output, which messes with Hugo's logic.


Discussion / hints:

Fix patch:
diff --git a/commands/hugo.go b/commands/hugo.go
index c13fdce0604..8dfd4b4bd56 100644
--- a/commands/hugo.go
+++ b/commands/hugo.go
@@ -33,6 +33,7 @@ import (
 	"github.com/gohugoio/hugo/hugofs/files"
 	"github.com/gohugoio/hugo/tpl"
 
+	"github.com/gohugoio/hugo/common/herrors"
 	"github.com/gohugoio/hugo/common/htime"
 	"github.com/gohugoio/hugo/common/types"
 
@@ -735,13 +736,16 @@ func (c *commandeer) buildSites(noBuildLock bool) (err error) {
 
 func (c *commandeer) handleBuildErr(err error, msg string) {
 	c.buildErr = err
-
-	c.logger.Errorln(msg + ":\n")
-	c.logger.Errorln(helpers.FirstUpper(err.Error()))
-
+	c.logger.Errorln(msg + ": " + cleanErrorLog(err.Error()))
 }
 
 func (c *commandeer) rebuildSites(events []fsnotify.Event) error {
+	if c.buildErr != nil {
+		ferrs := herrors.UnwrapFileErrorsWithErrorContext(c.buildErr)
+		for _, err := range ferrs {
+			events = append(events, fsnotify.Event{Name: err.Position().Filename, Op: fsnotify.Write})
+		}
+	}
 	c.buildErr = nil
 	visited := c.visitedURLs.PeekAllSet()
 	if c.fastRenderMode {
diff --git a/commands/server.go b/commands/server.go
index 27b12cb32ed..036fa9eaaa4 100644
--- a/commands/server.go
+++ b/commands/server.go
@@ -469,14 +469,26 @@ func (f *fileServer) createEndpoint(i int) (*http.ServeMux, net.Listener, string
 	return mu, listener, u.String(), endpoint, nil
 }
 
-var logErrorRe = regexp.MustCompile(`(?s)ERROR \d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} `)
+var (
+	logErrorRe                    = regexp.MustCompile(`(?s)ERROR \d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} `)
+	logDuplicateTemplateExecuteRe = regexp.MustCompile(`: template: .*?:\d+:\d+: executing ".*?"`)
+	logDuplicateTemplateParseRe   = regexp.MustCompile(`: template: .*?:\d+:\d*`)
+)
 
 func removeErrorPrefixFromLog(content string) string {
 	return logErrorRe.ReplaceAllLiteralString(content, "")
 }
+
+var logReplacer = strings.NewReplacer(
+	"can't", "can’t", // Chroma lexer does'nt do well with "can't"
+	"*hugolib.pageState", "page.Page", // Page is the public interface.
+)
+
 func cleanErrorLog(content string) string {
-	content = strings.ReplaceAll(content, "Rebuild failed:\n", "")
-	content = strings.ReplaceAll(content, "\n", "")
+	content = strings.ReplaceAll(content, "\n", " ")
+	content = logReplacer.Replace(content)
+	content = logDuplicateTemplateExecuteRe.ReplaceAllString(content, "")
+	content = logDuplicateTemplateParseRe.ReplaceAllString(content, "")
 	seen := make(map[string]bool)
 	parts := strings.Split(content, ": ")
 	keep := make([]string, 0, len(parts))
@@ -515,7 +527,7 @@ func (c *commandeer) serve(s *serverCmd) error {
 		c:        c,
 		s:        s,
 		errorTemplate: func(ctx any) (io.Reader, error) {
-			templ, found := c.hugo().Tmpl().Lookup("server/error.html")
+			templ, found := c.hugo().Tmpl().Lookup("_server/error.html")
 			if !found {
 				panic("template server/error.html not found")
 			}
diff --git a/common/herrors/error_locator.go b/common/herrors/error_locator.go
index 5d2c10c0403..0f22f545f40 100644
--- a/common/herrors/error_locator.go
+++ b/common/herrors/error_locator.go
@@ -34,11 +34,22 @@ type LineMatcher struct {
 }
 
 // LineMatcherFn is used to match a line with an error.
-type LineMatcherFn func(m LineMatcher) bool
+// It returns the column number or 0 if the line was found, but column could not be determinde. Returns -1 if no line match.
+type LineMatcherFn func(m LineMatcher) int
 
 // SimpleLineMatcher simply matches by line number.
-var SimpleLineMatcher = func(m LineMatcher) bool {
-	return m.Position.LineNumber == m.LineNumber
+var SimpleLineMatcher = func(m LineMatcher) int {
+	if m.Position.LineNumber == m.LineNumber {
+		// We found the line, but don't know the column.
+		return 0
+	}
+	return -1
+}
+
+// NopLineMatcher is a matcher that always returns 1.
+// This will effectively give line 1, column 1.
+var NopLineMatcher = func(m LineMatcher) int {
+	return 1
 }
 
 // ErrorContext contains contextual information about an error. This will
@@ -52,6 +63,10 @@ type ErrorContext struct {
 	// The position of the error in the Lines above. 0 based.
 	LinesPos int
 
+	// The position of the content in the file. Note that this may be different from the error's position set
+	// in FileError.
+	Position text.Position
+
 	// The lexer to use for syntax highlighting.
 	// https://gohugo.io/content-management/syntax-highlighting/#list-of-chroma-highlighting-languages
 	ChromaLexer string
@@ -78,31 +93,24 @@ func chromaLexerFromFilename(filename string) string {
 	return chromaLexerFromType(ext)
 }
 
-func locateErrorInString(src string, matcher LineMatcherFn) (*ErrorContext, text.Position) {
+func locateErrorInString(src string, matcher LineMatcherFn) *ErrorContext {
 	return locateError(strings.NewReader(src), &fileError{}, matcher)
 }
 
-func locateError(r io.Reader, le FileError, matches LineMatcherFn) (*ErrorContext, text.Position) {
+func locateError(r io.Reader, le FileError, matches LineMatcherFn) *ErrorContext {
 	if le == nil {
 		panic("must provide an error")
 	}
 
-	errCtx := &ErrorContext{LinesPos: -1}
-	pos := text.Position{LineNumber: -1, ColumnNumber: 1, Offset: -1}
+	ectx := &ErrorContext{LinesPos: -1, Position: text.Position{Offset: -1}}
 
 	b, err := ioutil.ReadAll(r)
 	if err != nil {
-		return errCtx, pos
+		return ectx
 	}
 
-	lepos := le.Position()
-
 	lines := strings.Split(string(b), "\n")
 
-	if lepos.ColumnNumber >= 0 {
-		pos.ColumnNumber = lepos.ColumnNumber
-	}
-
 	lineNo := 0
 	posBytes := 0
 
@@ -115,34 +123,36 @@ func locateError(r io.Reader, le FileError, matches LineMatcherFn) (*ErrorContex
 			Offset:     posBytes,
 			Line:       line,
 		}
-		if errCtx.LinesPos == -1 && matches(m) {
-			pos.LineNumber = lineNo
+		v := matches(m)
+		if ectx.LinesPos == -1 && v != -1 {
+			ectx.Position.LineNumber = lineNo
+			ectx.Position.ColumnNumber = v
 			break
 		}
 
 		posBytes += len(line)
 	}
 
-	if pos.LineNumber != -1 {
-		low := pos.LineNumber - 3
+	if ectx.Position.LineNumber > 0 {
+		low := ectx.Position.LineNumber - 3
 		if low < 0 {
 			low = 0
 		}
 
-		if pos.LineNumber > 2 {
-			errCtx.LinesPos = 2
+		if ectx.Position.LineNumber > 2 {
+			ectx.LinesPos = 2
 		} else {
-			errCtx.LinesPos = pos.LineNumber - 1
+			ectx.LinesPos = ectx.Position.LineNumber - 1
 		}
 
-		high := pos.LineNumber + 2
+		high := ectx.Position.LineNumber + 2
 		if high > len(lines) {
 			high = len(lines)
 		}
 
-		errCtx.Lines = lines[low:high]
+		ectx.Lines = lines[low:high]
 
 	}
 
-	return errCtx, pos
+	return ectx
 }
diff --git a/common/herrors/file_error.go b/common/herrors/file_error.go
index abd36cfbca6..5cdb0e53b7b 100644
--- a/common/herrors/file_error.go
+++ b/common/herrors/file_error.go
@@ -73,37 +73,40 @@ func (fe *fileError) UpdateContent(r io.Reader, linematcher LineMatcherFn) FileE
 	}
 
 	var (
-		contentPos   text.Position
-		posle        = fe.position
-		errorContext *ErrorContext
+		posle = fe.position
+		ectx  *ErrorContext
 	)
 
 	if posle.LineNumber <= 1 && posle.Offset > 0 {
 		// Try to locate the line number from the content if offset is set.
-		errorContext, contentPos = locateError(r, fe, func(m LineMatcher) bool {
+		ectx = locateError(r, fe, func(m LineMatcher) int {
 			if posle.Offset >= m.Offset && posle.Offset < m.Offset+len(m.Line) {
 				lno := posle.LineNumber - m.Position.LineNumber + m.LineNumber
 				m.Position = text.Position{LineNumber: lno}
 				return linematcher(m)
 			}
-			return false
+			return -1
 		})
 	} else {
-		errorContext, contentPos = locateError(r, fe, linematcher)
+		ectx = locateError(r, fe, linematcher)
 	}
 
-	if errorContext.ChromaLexer == "" {
+	if ectx.ChromaLexer == "" {
 		if fe.fileType != "" {
-			errorContext.ChromaLexer = chromaLexerFromType(fe.fileType)
+			ectx.ChromaLexer = chromaLexerFromType(fe.fileType)
 		} else {
-			errorContext.ChromaLexer = chromaLexerFromFilename(fe.Position().Filename)
+			ectx.ChromaLexer = chromaLexerFromFilename(fe.Position().Filename)
 		}
 	}
 
-	fe.errorContext = errorContext
+	fe.errorContext = ectx
 
-	if contentPos.LineNumber > 0 {
-		fe.position.LineNumber = contentPos.LineNumber
+	if ectx.Position.LineNumber > 0 {
+		fe.position.LineNumber = ectx.Position.LineNumber
+	}
+
+	if ectx.Position.ColumnNumber > 0 {
+		fe.position.ColumnNumber = ectx.Position.ColumnNumber
 	}
 
 	return fe
@@ -144,10 +147,6 @@ func (e *fileError) Unwrap() error {
 // The value for name should identify the file, the best
 // being the full filename to the file on disk.
 func NewFileError(name string, err error) FileError {
-	if err == nil {
-		panic("err is nil")
-	}
-
 	// Filetype is used to determine the Chroma lexer to use.
 	fileType, pos := extractFileTypePos(err)
 	pos.Filename = name
@@ -155,10 +154,17 @@ func NewFileError(name string, err error) FileError {
 		_, fileType = paths.FileAndExtNoDelimiter(filepath.Clean(name))
 	}
 
-	if pos.LineNumber < 0 {
-		panic(fmt.Sprintf("invalid line number: %d", pos.LineNumber))
-	}
+	return &fileError{cause: err, fileType: fileType, position: pos}
 
+}
+
+// NewFileErrorFromPos will use the filename and line number from pos to create a new FileError, wrapping err.
+func NewFileErrorFromPos(pos text.Position, err error) FileError {
+	// Filetype is used to determine the Chroma lexer to use.
+	fileType, _ := extractFileTypePos(err)
+	if fileType == "" {
+		_, fileType = paths.FileAndExtNoDelimiter(filepath.Clean(pos.Filename))
+	}
 	return &fileError{cause: err, fileType: fileType, position: pos}
 
 }
@@ -191,7 +197,7 @@ func extractFileTypePos(err error) (string, text.Position) {
 	err = Cause(err)
 	var fileType string
 
-	// Fall back to line/col 1:1 if we cannot find any better information.
+	// Default to line 1 col 1 if we don't find any better.
 	pos := text.Position{
 		Offset:       -1,
 		LineNumber:   1,
@@ -242,6 +248,18 @@ func UnwrapFileError(err error) FileError {
 	return nil
 }
 
+// UnwrapFileErrors tries to unwrap all FileError.
+func UnwrapFileErrors(err error) []FileError {
+	var errs []FileError
+	for err != nil {
+		if v, ok := err.(FileError); ok {
+			errs = append(errs, v)
+		}
+		err = errors.Unwrap(err)
+	}
+	return errs
+}
+
 // UnwrapFileErrorsWithErrorContext tries to unwrap all FileError in err that has an ErrorContext.
 func UnwrapFileErrorsWithErrorContext(err error) []FileError {
 	var errs []FileError
diff --git a/common/loggers/loggers.go b/common/loggers/loggers.go
index 14c76ae4576..c61c55a67fa 100644
--- a/common/loggers/loggers.go
+++ b/common/loggers/loggers.go
@@ -240,6 +240,11 @@ func NewBasicLoggerForWriter(t jww.Threshold, w io.Writer) Logger {
 	return newLogger(t, jww.LevelError, w, ioutil.Discard, false)
 }
 
+// RemoveANSIColours removes all ANSI colours from the given string.
+func RemoveANSIColours(s string) string {
+	return ansiColorRe.ReplaceAllString(s, "")
+}
+
 var (
 	ansiColorRe = regexp.MustCompile("(?s)\\033\\[\\d*(;\\d*)*m")
 	errorRe     = regexp.MustCompile("^(ERROR|FATAL|WARN)")
diff --git a/config/configLoader.go b/config/configLoader.go
index 6bbad7002bb..008ebbfae1c 100644
--- a/config/configLoader.go
+++ b/config/configLoader.go
@@ -59,7 +59,7 @@ func FromConfigString(config, configType string) (Provider, error) {
 func FromFile(fs afero.Fs, filename string) (Provider, error) {
 	m, err := loadConfigFromFile(fs, filename)
 	if err != nil {
-		return nil, herrors.NewFileErrorFromFile(err, filename, filename, fs, herrors.SimpleLineMatcher)
+		return nil, herrors.NewFileErrorFromFile(err, filename, filename, fs, nil)
 	}
 	return NewFrom(m), nil
 }
diff --git a/hugolib/config.go b/hugolib/config.go
index b2713758ac2..1e7cf6b0651 100644
--- a/hugolib/config.go
+++ b/hugolib/config.go
@@ -511,5 +511,5 @@ func (configLoader) loadSiteConfig(cfg config.Provider) (scfg SiteConfig, err er
 }
 
 func (l configLoader) wrapFileError(err error, filename string) error {
-	return herrors.NewFileErrorFromFile(err, filename, filename, l.Fs, herrors.SimpleLineMatcher)
+	return herrors.NewFileErrorFromFile(err, filename, filename, l.Fs, nil)
 }
diff --git a/hugolib/hugo_sites.go b/hugolib/hugo_sites.go
index 9f18f33bc70..4026f58d3f9 100644
--- a/hugolib/hugo_sites.go
+++ b/hugolib/hugo_sites.go
@@ -968,7 +968,7 @@ func (h *HugoSites) errWithFileContext(err error, f source.File) error {
 	}
 	realFilename := fim.Meta().Filename
 
-	return herrors.NewFileErrorFromFile(err, realFilename, realFilename, h.SourceSpec.Fs.Source, herrors.SimpleLineMatcher)
+	return herrors.NewFileErrorFromFile(err, realFilename, realFilename, h.SourceSpec.Fs.Source, nil)
 
 }
 
diff --git a/hugolib/page.go b/hugolib/page.go
index 4faefa3ccb3..e9f9371052a 100644
--- a/hugolib/page.go
+++ b/hugolib/page.go
@@ -572,25 +572,23 @@ func (p *pageState) wrapError(err error) error {
 
 	filename := p.File().Filename()
 
-	if ferr := herrors.UnwrapFileError(err); ferr != nil {
+	// Check if it's already added.
+	for _, ferr := range herrors.UnwrapFileErrors(err) {
 		errfilename := ferr.Position().Filename
-		if ferr.ErrorContext() != nil || errfilename == "" || !(errfilename == pageFileErrorName || filepath.IsAbs(errfilename)) {
-			return err
-		}
-		if filepath.IsAbs(errfilename) {
-			filename = errfilename
-		}
-		f, ferr2 := p.s.SourceSpec.Fs.Source.Open(filename)
-		if ferr2 != nil {
+		if errfilename == filename {
+			if ferr.ErrorContext() == nil {
+				f, ioerr := p.s.SourceSpec.Fs.Source.Open(filename)
+				if ioerr != nil {
+					return err
+				}
+				defer f.Close()
+				ferr.UpdateContent(f, nil)
+			}
 			return err
 		}
-		defer f.Close()
-		pos := ferr.Position()
-		pos.Filename = filename
-		return ferr.UpdatePosition(pos).UpdateContent(f, herrors.SimpleLineMatcher)
 	}
 
-	return herrors.NewFileErrorFromFile(err, filename, filename, p.s.SourceSpec.Fs.Source, herrors.SimpleLineMatcher)
+	return herrors.NewFileErrorFromFile(err, filename, filename, p.s.SourceSpec.Fs.Source, herrors.NopLineMatcher)
 
 }
 
@@ -644,8 +642,10 @@ Loop:
 			m, err := metadecoders.Default.UnmarshalToMap(it.Val, f)
 			if err != nil {
 				if fe, ok := err.(herrors.FileError); ok {
-					// Offset the starting position of front matter.
 					pos := fe.Position()
+					// Apply the error to the content file.
+					pos.Filename = p.File().Filename()
+					// Offset the starting position of front matter.
 					offset := iter.LineNumber() - 1
 					if f == metadecoders.YAML {
 						offset -= 1
@@ -788,7 +788,7 @@ func (p *pageState) outputFormat() (f output.Format) {
 
 func (p *pageState) parseError(err error, input []byte, offset int) error {
 	pos := p.posFromInput(input, offset)
-	return herrors.NewFileError("page.md", err).UpdatePosition(pos)
+	return herrors.NewFileError(p.File().Filename(), err).UpdatePosition(pos)
 }
 
 func (p *pageState) pathOrTitle() string {
diff --git a/hugolib/page__per_output.go b/hugolib/page__per_output.go
index fdce8e802e6..6460b120b23 100644
--- a/hugolib/page__per_output.go
+++ b/hugolib/page__per_output.go
@@ -417,7 +417,7 @@ func (p *pageContentOutput) Render(layout ...string) (template.HTML, error) {
 	// Make sure to send the *pageState and not the *pageContentOutput to the template.
 	res, err := executeToString(p.p.s.Tmpl(), templ, p.p)
 	if err != nil {
-		return "", p.p.wrapError(fmt.Errorf("failed to execute template %q v: %w", layout, err))
+		return "", p.p.wrapError(fmt.Errorf("failed to execute template %s: %w", templ.Name(), err))
 	}
 	return template.HTML(res), nil
 }
diff --git a/hugolib/shortcode.go b/hugolib/shortcode.go
index 42877b53780..f8cda6b8da1 100644
--- a/hugolib/shortcode.go
+++ b/hugolib/shortcode.go
@@ -270,7 +270,6 @@ const (
 	innerNewlineRegexp = "\n"
 	innerCleanupRegexp = `\A<p>(.*)</p>\n\z`
 	innerCleanupExpand = "$1"
-	pageFileErrorName  = "page.md"
 )
 
 func renderShortcode(
@@ -299,7 +298,7 @@ func renderShortcode(
 			var err error
 			tmpl, err = s.TextTmpl().Parse(templName, templStr)
 			if err != nil {
-				fe := herrors.NewFileError(pageFileErrorName, err)
+				fe := herrors.NewFileError(p.File().Filename(), err)
 				pos := fe.Position()
 				pos.LineNumber += p.posOffset(sc.pos).LineNumber
 				fe = fe.UpdatePosition(pos)
@@ -392,7 +391,7 @@ func renderShortcode(
 	result, err := renderShortcodeWithPage(s.Tmpl(), tmpl, data)
 
 	if err != nil && sc.isInline {
-		fe := herrors.NewFileError("shortcode.md", err)
+		fe := herrors.NewFileError(p.File().Filename(), err)
 		pos := fe.Position()
 		pos.LineNumber += p.posOffset(sc.pos).LineNumber
 		fe = fe.UpdatePosition(pos)
diff --git a/langs/i18n/translationProvider.go b/langs/i18n/translationProvider.go
index 52f9349c27d..4c0934badea 100644
--- a/langs/i18n/translationProvider.go
+++ b/langs/i18n/translationProvider.go
@@ -138,6 +138,6 @@ func errWithFileContext(inerr error, r source.File) error {
 	}
 	defer f.Close()
 
-	return herrors.NewFileError(realFilename, inerr).UpdateContent(f, herrors.SimpleLineMatcher)
+	return herrors.NewFileError(realFilename, inerr).UpdateContent(f, nil)
 
 }
diff --git a/markup/goldmark/codeblocks/render.go b/markup/goldmark/codeblocks/render.go
index fa6d236a15c..5ebc2a9ef73 100644
--- a/markup/goldmark/codeblocks/render.go
+++ b/markup/goldmark/codeblocks/render.go
@@ -19,6 +19,7 @@ import (
 	"sync"
 
 	"github.com/alecthomas/chroma/lexers"
+	"github.com/gohugoio/hugo/common/herrors"
 	htext "github.com/gohugoio/hugo/common/text"
 	"github.com/gohugoio/hugo/markup/converter/hooks"
 	"github.com/gohugoio/hugo/markup/goldmark/internal/render"
@@ -114,8 +115,8 @@ func (r *htmlRenderer) renderCodeBlock(w util.BufWriter, src []byte, node ast.No
 		}
 		return htext.Position{
 			Filename:     ctx.DocumentContext().Filename,
-			LineNumber:   0,
-			ColumnNumber: 0,
+			LineNumber:   1,
+			ColumnNumber: 1,
 		}
 	}
 
@@ -128,7 +129,11 @@ func (r *htmlRenderer) renderCodeBlock(w util.BufWriter, src []byte, node ast.No
 
 	ctx.AddIdentity(cr)
 
-	return ast.WalkContinue, err
+	if err != nil {
+		return ast.WalkContinue, herrors.NewFileErrorFromPos(cbctx.createPos(), err)
+	}
+
+	return ast.WalkContinue, nil
 }
 
 type codeBlockContext struct {
diff --git a/resources/resource_transformers/js/build.go b/resources/resource_transformers/js/build.go
index d2fbf5065a3..00012b4e8b7 100644
--- a/resources/resource_transformers/js/build.go
+++ b/resources/resource_transformers/js/build.go
@@ -137,6 +137,12 @@ func (t *buildTransformation) Transform(ctx *resources.ResourceTransformationCtx
 				return errors.New(msg.Text)
 			}
 			path := loc.File
+			if path == stdinImporter {
+				path = ctx.SourcePath
+			}
+
+			errorMessage := msg.Text
+			errorMessage = strings.ReplaceAll(errorMessage, nsImportHugo+":", "")
 
 			var (
 				f   afero.File
@@ -158,15 +164,16 @@ func (t *buildTransformation) Transform(ctx *resources.ResourceTransformationCtx
 			}
 
 			if err == nil {
-				fe := herrors.NewFileError(path, errors.New(msg.Text)).
+				fe := herrors.
+					NewFileError(path, errors.New(errorMessage)).
 					UpdatePosition(text.Position{Offset: -1, LineNumber: loc.Line, ColumnNumber: loc.Column}).
-					UpdateContent(f, herrors.SimpleLineMatcher)
+					UpdateContent(f, nil)
 
 				f.Close()
 				return fe
 			}
 
-			return fmt.Errorf("%s", msg.Text)
+			return fmt.Errorf("%s", errorMessage)
 		}
 
 		var errors []error
diff --git a/resources/resource_transformers/postcss/postcss.go b/resources/resource_transformers/postcss/postcss.go
index 733c958cfa9..a5c86df6fb0 100644
--- a/resources/resource_transformers/postcss/postcss.go
+++ b/resources/resource_transformers/postcss/postcss.go
@@ -28,6 +28,7 @@ import (
 
 	"github.com/gohugoio/hugo/common/collections"
 	"github.com/gohugoio/hugo/common/hexec"
+	"github.com/gohugoio/hugo/hugofs"
 
 	"github.com/gohugoio/hugo/common/hugo"
 
@@ -39,8 +40,6 @@ import (
 
 	"errors"
 
-	"github.com/gohugoio/hugo/hugofs"
-
 	"github.com/mitchellh/mapstructure"
 
 	"github.com/gohugoio/hugo/common/herrors"
@@ -369,7 +368,8 @@ func (imp *importResolver) shouldImport(s string) bool {
 }
 
 func (imp *importResolver) toFileError(output string) error {
-	inErr := errors.New(strings.TrimSpace(output))
+	output = strings.TrimSpace(loggers.RemoveANSIColours(output))
+	inErr := errors.New(output)
 
 	match := cssSyntaxErrorRe.FindStringSubmatch(output)
 	if match == nil {
@@ -391,8 +391,19 @@ func (imp *importResolver) toFileError(output string) error {
 		return inErr
 	}
 
-	realFilename := fi.(hugofs.FileMetaInfo).Meta().Filename
+	meta := fi.(hugofs.FileMetaInfo).Meta()
+	realFilename := meta.Filename
+	f, err := meta.Open()
+	if err != nil {
+		return inErr
+	}
+	defer f.Close()
+
+	ferr := herrors.NewFileError(realFilename, inErr)
+	pos := ferr.Position()
+	pos.LineNumber = file.Offset + 1
+	return ferr.UpdatePosition(pos).UpdateContent(f, nil)
 
-	return herrors.NewFileErrorFromFile(inErr, file.Filename, realFilename, hugofs.Os, herrors.SimpleLineMatcher)
+	//return herrors.NewFileErrorFromFile(inErr, file.Filename, realFilename, hugofs.Os, herrors.SimpleLineMatcher)
 
 }
diff --git a/resources/resource_transformers/tocss/dartsass/transform.go b/resources/resource_transformers/tocss/dartsass/transform.go
index 082e30710a1..be4367b2f76 100644
--- a/resources/resource_transformers/tocss/dartsass/transform.go
+++ b/resources/resource_transformers/tocss/dartsass/transform.go
@@ -116,8 +116,13 @@ func (t *transform) Transform(ctx *resources.ResourceTransformationCtx) error {
 				filename = filename[len(stdinPrefix):]
 			}
 
-			offsetMatcher := func(m herrors.LineMatcher) bool {
-				return m.Offset+len(m.Line) >= start.Offset && strings.Contains(m.Line, context)
+			offsetMatcher := func(m herrors.LineMatcher) int {
+				if m.Offset+len(m.Line) >= start.Offset && strings.Contains(m.Line, context) {
+					// We found the line, but return 0 to signal that we want to determine
+					// the column from the error.
+					return 0
+				}
+				return -1
 			}
 
 			return herrors.NewFileErrorFromFile(sassErr, filename, filename, hugofs.Os, offsetMatcher)
diff --git a/tpl/tplimpl/embedded/templates/_server/error.html b/tpl/tplimpl/embedded/templates/_server/error.html
new file mode 100644
index 00000000000..77d58139173
--- /dev/null
+++ b/tpl/tplimpl/embedded/templates/_server/error.html
@@ -0,0 +1,87 @@
+<!DOCTYPE html>
+<html class="no-js" lang="">
+  <head>
+    <meta charset="utf-8" />
+    <title>Hugo Server: Error</title>
+    <style type="text/css">
+      body {
+        font-family: "Muli", system-ui, -apple-system, "Segoe UI", Roboto,
+          "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif,
+          "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol",
+          "Noto Color Emoji";
+        font-size: 14px;
+        background-color: #272a36;
+      }
+      main {
+        max-width: 100ch;
+        padding: 2ch;
+        margin: auto;
+      }
+
+      .version {
+        font-size: 0.75rem;
+        color: #7c7c7c;
+      }
+
+      hr {
+        margin-bottom: 1rem;
+        border: none;
+        height: 1px;
+        background-color: #3d3d3d;
+      }
+      pre,
+      code {
+        white-space: pre-wrap;
+        white-space: -moz-pre-wrap;
+        white-space: -pre-wrap;
+        white-space: -o-pre-wrap;
+        word-wrap: break-word;
+        font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
+          "Courier New", monospace;
+      }
+      .error pre {
+        line-height: 1.5;
+      }
+      .filename {
+        color: #eef78a;
+        font-size: 0.9rem;
+        line-height: 1.5;
+      }
+      .highlight {
+        overflow-x: auto;
+      }
+      a {
+        color: #0594cb;
+        text-decoration: none;
+      }
+      a:hover {
+        color: #ccc;
+      }
+    </style>
+  </head>
+  <body>
+    <main>
+      {{ $codeStyle := "dracula" }}
+      <div class="error">
+        {{ highlight .Error "apl" (printf "linenos=false,noclasses=true,style=%s" $codeStyle ) }}
+      </div>
+      <hr />
+      {{ range $i, $e := .Files }}
+        {{ if not .ErrorContext }}
+          {{ continue }}
+        {{ end }}
+        {{ $params := printf "noclasses=true,style=%s,linenos=table,hl_lines=%d,linenostart=%d" $codeStyle (add .ErrorContext.LinesPos 1) (sub .Position.LineNumber .ErrorContext.LinesPos) }}
+        {{ $lexer := .ErrorContext.ChromaLexer | default "go-html-template" }}
+        {{ with .Position }}
+          <code class="filename"
+            >{{ printf "%s:%d:%d" .Filename .LineNumber .ColumnNumber }}:</code
+          >
+        {{ end }}
+        {{ highlight (delimit .ErrorContext.Lines "\n") $lexer $params }}
+        <hr />
+      {{ end }}
+      <p class="version">{{ .Version }}</p>
+      <a href="">Reload Page</a>
+    </main>
+  </body>
+</html>
diff --git a/tpl/tplimpl/embedded/templates/server/error.html b/tpl/tplimpl/embedded/templates/server/error.html
deleted file mode 100644
index e5c6d0cbf3f..00000000000
--- a/tpl/tplimpl/embedded/templates/server/error.html
+++ /dev/null
@@ -1,63 +0,0 @@
-<!DOCTYPE html>
-<html class="no-js" lang="">
-  <head>
-    <meta charset="utf-8" />
-    <title>Hugo Server: Error</title>
-    <style type="text/css">
-      body {
-        font-family: "Muli", avenir, -apple-system, BlinkMacSystemFont,
-          "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji",
-          "Segoe UI Emoji", "Segoe UI Symbol";
-        font-size: 16px;
-        color: #48b685;
-        background-color: #2f1e2e;
-      }
-      main {
-        margin: auto;
-        width: 95%;
-        padding: 1rem;
-      }
-      .version {
-        color: #ccc;
-        padding: 1rem 0;
-      }
-      .stack {
-        margin-top: 4rem;
-      }
-      pre {
-        white-space: pre-wrap;
-        white-space: -moz-pre-wrap;
-        white-space: -pre-wrap;
-        white-space: -o-pre-wrap;
-        word-wrap: break-word;
-      }
-      .highlight {
-        overflow-x: auto;
-        margin-bottom: 1rem;
-      }
-      a {
-        color: #0594cb;
-        text-decoration: none;
-      }
-      a:hover {
-        color: #ccc;
-      }
-    </style>
-  </head>
-  <body>
-    <main>
-      {{ highlight .Error "apl" "linenos=false,noclasses=true,style=paraiso-dark" }}
-      {{ range $i, $e := .Files }}
-        {{ if not .ErrorContext }}
-          {{ continue }}
-        {{ end }}
-        {{ $params := printf "noclasses=true,style=paraiso-dark,linenos=table,hl_lines=%d,linenostart=%d" (add .ErrorContext.LinesPos 1) (sub .Position.LineNumber .ErrorContext.LinesPos) }}
-        {{ $lexer := .ErrorContext.ChromaLexer | default "go-html-template" }}
-        <h3><code>{{ path.Base .Position.Filename }}:</code></h3>
-        {{ highlight (delimit .ErrorContext.Lines "\n") $lexer $params }}
-      {{ end }}
-      <p class="version">{{ .Version }}</p>
-      <a href="">Reload Page</a>
-    </main>
-  </body>
-</html>
diff --git a/tpl/tplimpl/template.go b/tpl/tplimpl/template.go
index c092ff63816..25f7957fd4f 100644
--- a/tpl/tplimpl/template.go
+++ b/tpl/tplimpl/template.go
@@ -61,6 +61,7 @@ const (
 
 // The identifiers may be truncated in the log, e.g.
 // "executing "main" at <$scaled.SRelPermalin...>: can't evaluate field SRelPermalink in type *resource.Image"
+// We need this to identify position in templates with base templates applied.
 var identifiersRe = regexp.MustCompile(`at \<(.*?)(\.{3})?\>:`)
 
 var embeddedTemplatesAliases = map[string][]string{
@@ -524,25 +525,27 @@ func (t *templateHandler) addFileContext(templ tpl.Template, inerr error) error
 		return inerr
 	}
 
+	identifiers := t.extractIdentifiers(inerr.Error())
+
 	//lint:ignore ST1008 the error is the main result
 	checkFilename := func(info templateInfo, inErr error) (error, bool) {
 		if info.filename == "" {
 			return inErr, false
 		}
 
-		lineMatcher := func(m herrors.LineMatcher) bool {
+		lineMatcher := func(m herrors.LineMatcher) int {
 			if m.Position.LineNumber != m.LineNumber {
-				return false
+				return -1
 			}
 
-			identifiers := t.extractIdentifiers(m.Error.Error())
-
 			for _, id := range identifiers {
 				if strings.Contains(m.Line, id) {
-					return true
+					// We found the line, but return a 0 to signal to
+					// use the column from the error message.
+					return 0
 				}
 			}
-			return false
+			return -1
 		}
 
 		f, err := t.layoutsFs.Open(info.filename)
@@ -551,7 +554,13 @@ func (t *templateHandler) addFileContext(templ tpl.Template, inerr error) error
 		}
 		defer f.Close()
 
-		return herrors.NewFileError(info.realFilename, inErr).UpdateContent(f, lineMatcher), true
+		fe := herrors.NewFileError(info.realFilename, inErr)
+		fe.UpdateContent(f, lineMatcher)
+
+		if !fe.ErrorContext().Position.IsValid() {
+			return inErr, false
+		}
+		return fe, true
 	}
 
 	inerr = fmt.Errorf("execute of template failed: %w", inerr)
@@ -565,6 +574,15 @@ func (t *templateHandler) addFileContext(templ tpl.Template, inerr error) error
 	return err
 }
 
+func (t *templateHandler) extractIdentifiers(line string) []string {
+	m := identifiersRe.FindAllStringSubmatch(line, -1)
+	identifiers := make([]string, len(m))
+	for i := 0; i < len(m); i++ {
+		identifiers[i] = m[i][1]
+	}
+	return identifiers
+}
+
 func (t *templateHandler) addShortcodeVariant(ts *templateState) {
 	name := ts.Name()
 	base := templateBaseName(templateShortcode, name)
@@ -721,18 +739,9 @@ func (t *templateHandler) applyTemplateTransformers(ns *templateNamespace, ts *t
 	return c, err
 }
 
-func (t *templateHandler) extractIdentifiers(line string) []string {
-	m := identifiersRe.FindAllStringSubmatch(line, -1)
-	identifiers := make([]string, len(m))
-	for i := 0; i < len(m); i++ {
-		identifiers[i] = m[i][1]
-	}
-	return identifiers
-}
-
 //go:embed embedded/templates/*
 //go:embed embedded/templates/_default/*
-//go:embed embedded/templates/server/*
+//go:embed embedded/templates/_server/*
 var embededTemplatesFs embed.FS
 
 func (t *templateHandler) loadEmbedded() error {
@@ -755,7 +764,7 @@ func (t *templateHandler) loadEmbedded() error {
 		// For the render hooks and the server templates it does not make sense to preseve the
 		// double _indternal double book-keeping,
 		// just add it if its now provided by the user.
-		if !strings.Contains(path, "_default/_markup") && !strings.HasPrefix(name, "server/") {
+		if !strings.Contains(path, "_default/_markup") && !strings.HasPrefix(name, "_server/") {
 			templateName = internalPathPrefix + name
 		}
 
diff --git a/tpl/tplimpl/template_errors.go b/tpl/tplimpl/template_errors.go
index d553a12e94a..751b4ddbc96 100644
--- a/tpl/tplimpl/template_errors.go
+++ b/tpl/tplimpl/template_errors.go
@@ -59,6 +59,6 @@ func (info templateInfo) errWithFileContext(what string, err error) error {
 		return err
 	}
 	defer f.Close()
-	return fe.UpdateContent(f, herrors.SimpleLineMatcher)
+	return fe.UpdateContent(f, nil)
 
 }


Test patch:
diff --git a/common/herrors/error_locator_test.go b/common/herrors/error_locator_test.go
index 10b016fa82b..6135657d8dc 100644
--- a/common/herrors/error_locator_test.go
+++ b/common/herrors/error_locator_test.go
@@ -24,8 +24,11 @@ import (
 func TestErrorLocator(t *testing.T) {
 	c := qt.New(t)
 
-	lineMatcher := func(m LineMatcher) bool {
-		return strings.Contains(m.Line, "THEONE")
+	lineMatcher := func(m LineMatcher) int {
+		if strings.Contains(m.Line, "THEONE") {
+			return 1
+		}
+		return -1
 	}
 
 	lines := `LINE 1
@@ -38,23 +41,25 @@ LINE 7
 LINE 8
 `
 
-	location, pos := locateErrorInString(lines, lineMatcher)
+	location := locateErrorInString(lines, lineMatcher)
+	pos := location.Position
 	c.Assert(location.Lines, qt.DeepEquals, []string{"LINE 3", "LINE 4", "This is THEONE", "LINE 6", "LINE 7"})
 
 	c.Assert(pos.LineNumber, qt.Equals, 5)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
 	locate := func(s string, m LineMatcherFn) *ErrorContext {
-		ctx, _ := locateErrorInString(s, m)
+		ctx := locateErrorInString(s, m)
 		return ctx
 	}
 
 	c.Assert(locate(`This is THEONE`, lineMatcher).Lines, qt.DeepEquals, []string{"This is THEONE"})
 
-	location, pos = locateErrorInString(`L1
+	location = locateErrorInString(`L1
 This is THEONE
 L2
 `, lineMatcher)
+	pos = location.Position
 	c.Assert(pos.LineNumber, qt.Equals, 2)
 	c.Assert(location.LinesPos, qt.Equals, 1)
 	c.Assert(location.Lines, qt.DeepEquals, []string{"L1", "This is THEONE", "L2", ""})
@@ -78,16 +83,20 @@ This THEONE
 	c.Assert(location.Lines, qt.DeepEquals, []string{"L1", "L2", "This THEONE", ""})
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
-	location, pos = locateErrorInString("NO MATCH", lineMatcher)
-	c.Assert(pos.LineNumber, qt.Equals, -1)
+	location = locateErrorInString("NO MATCH", lineMatcher)
+	pos = location.Position
+	c.Assert(pos.LineNumber, qt.Equals, 0)
 	c.Assert(location.LinesPos, qt.Equals, -1)
 	c.Assert(len(location.Lines), qt.Equals, 0)
 
-	lineMatcher = func(m LineMatcher) bool {
-		return m.LineNumber == 6
+	lineMatcher = func(m LineMatcher) int {
+		if m.LineNumber == 6 {
+			return 1
+		}
+		return -1
 	}
 
-	location, pos = locateErrorInString(`A
+	location = locateErrorInString(`A
 B
 C
 D
@@ -97,35 +106,46 @@ G
 H
 I
 J`, lineMatcher)
+	pos = location.Position
 
 	c.Assert(location.Lines, qt.DeepEquals, []string{"D", "E", "F", "G", "H"})
 	c.Assert(pos.LineNumber, qt.Equals, 6)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
 	// Test match EOF
-	lineMatcher = func(m LineMatcher) bool {
-		return m.LineNumber == 4
+	lineMatcher = func(m LineMatcher) int {
+		if m.LineNumber == 4 {
+			return 1
+		}
+		return -1
 	}
 
-	location, pos = locateErrorInString(`A
+	location = locateErrorInString(`A
 B
 C
 `, lineMatcher)
 
+	pos = location.Position
+
 	c.Assert(location.Lines, qt.DeepEquals, []string{"B", "C", ""})
 	c.Assert(pos.LineNumber, qt.Equals, 4)
 	c.Assert(location.LinesPos, qt.Equals, 2)
 
-	offsetMatcher := func(m LineMatcher) bool {
-		return m.Offset == 1
+	offsetMatcher := func(m LineMatcher) int {
+		if m.Offset == 1 {
+			return 1
+		}
+		return -1
 	}
 
-	location, pos = locateErrorInString(`A
+	location = locateErrorInString(`A
 B
 C
 D
 E`, offsetMatcher)
 
+	pos = location.Position
+
 	c.Assert(location.Lines, qt.DeepEquals, []string{"A", "B", "C", "D"})
 	c.Assert(pos.LineNumber, qt.Equals, 2)
 	c.Assert(location.LinesPos, qt.Equals, 1)
diff --git a/common/herrors/file_error_test.go b/common/herrors/file_error_test.go
index e6595aa28c3..41e244109a4 100644
--- a/common/herrors/file_error_test.go
+++ b/common/herrors/file_error_test.go
@@ -41,7 +41,7 @@ func TestNewFileError(t *testing.T) {
 	fe.UpdatePosition(text.Position{LineNumber: 32, ColumnNumber: 2})
 	c.Assert(fe.Error(), qt.Equals, `"foo.html:32:2": bar`)
 	fe.UpdatePosition(text.Position{LineNumber: 0, ColumnNumber: 0, Offset: 212})
-	fe.UpdateContent(strings.NewReader(lines), SimpleLineMatcher)
+	fe.UpdateContent(strings.NewReader(lines), nil)
 	c.Assert(fe.Error(), qt.Equals, `"foo.html:32:0": bar`)
 	errorContext := fe.ErrorContext()
 	c.Assert(errorContext, qt.IsNotNil)
diff --git a/common/loggers/loggers_test.go b/common/loggers/loggers_test.go
index 0c0cc859b7d..a7bd1ae1272 100644
--- a/common/loggers/loggers_test.go
+++ b/common/loggers/loggers_test.go
@@ -46,3 +46,15 @@ func TestLoggerToWriterWithPrefix(t *testing.T) {
 
 	c.Assert(b.String(), qt.Equals, "myprefix: Hello Hugo!\n")
 }
+
+func TestRemoveANSIColours(t *testing.T) {
+	c := qt.New(t)
+
+	c.Assert(RemoveANSIColours(""), qt.Equals, "")
+	c.Assert(RemoveANSIColours("\033[31m"), qt.Equals, "")
+	c.Assert(RemoveANSIColours("\033[31mHello"), qt.Equals, "Hello")
+	c.Assert(RemoveANSIColours("\033[31mHello\033[0m"), qt.Equals, "Hello")
+	c.Assert(RemoveANSIColours("\033[31mHello\033[0m World"), qt.Equals, "Hello World")
+	c.Assert(RemoveANSIColours("\033[31mHello\033[0m World\033[31m!"), qt.Equals, "Hello World!")
+	c.Assert(RemoveANSIColours("\x1b[90m 5 |"), qt.Equals, " 5 |")
+}
diff --git a/hugolib/cascade_test.go b/hugolib/cascade_test.go
index 0a7f66e6c1b..dff2082b6a2 100644
--- a/hugolib/cascade_test.go
+++ b/hugolib/cascade_test.go
@@ -77,7 +77,7 @@ kind = '{section,term}'
 		}
 		builders := make([]*IntegrationTestBuilder, b.N)
 
-		for i, _ := range builders {
+		for i := range builders {
 			builders[i] = NewIntegrationTestBuilder(cfg)
 		}
 
diff --git a/hugolib/hugo_sites_build_errors_test.go b/hugolib/hugo_sites_build_errors_test.go
index 8f983075da1..ffbfe1c17e5 100644
--- a/hugolib/hugo_sites_build_errors_test.go
+++ b/hugolib/hugo_sites_build_errors_test.go
@@ -347,13 +347,75 @@ minify = true
 
 }
 
-func TestErrorNested(t *testing.T) {
+func TestErrorNestedRender(t *testing.T) {
 	t.Parallel()
 
 	files := `
 -- config.toml --
+-- content/_index.md --
+---
+title: "Home"
+---
+-- layouts/index.html --
+line 1
+line 2
+1{{ .Render "myview" }}
+-- layouts/_default/myview.html --
+line 1
+12{{ partial "foo.html" . }}
+line 4
+line 5
+-- layouts/partials/foo.html --
+line 1
+line 2
+123{{ .ThisDoesNotExist }}
+line 4
+`
+
+	b, err := NewIntegrationTestBuilder(
+		IntegrationTestConfig{
+			T:           t,
+			TxtarString: files,
+		},
+	).BuildE()
+
+	b.Assert(err, qt.IsNotNil)
+	errors := herrors.UnwrapFileErrorsWithErrorContext(err)
+	b.Assert(errors, qt.HasLen, 4)
+	b.Assert(errors[0].Position().LineNumber, qt.Equals, 3)
+	b.Assert(errors[0].Position().ColumnNumber, qt.Equals, 4)
+	b.Assert(errors[0].Error(), qt.Contains, filepath.FromSlash(`"/layouts/index.html:3:4": execute of template failed`))
+	b.Assert(errors[0].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "line 2", "1{{ .Render \"myview\" }}"})
+	b.Assert(errors[2].Position().LineNumber, qt.Equals, 2)
+	b.Assert(errors[2].Position().ColumnNumber, qt.Equals, 5)
+	b.Assert(errors[2].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "12{{ partial \"foo.html\" . }}", "line 4", "line 5"})
+
+	b.Assert(errors[3].Position().LineNumber, qt.Equals, 3)
+	b.Assert(errors[3].Position().ColumnNumber, qt.Equals, 6)
+	b.Assert(errors[3].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "line 2", "123{{ .ThisDoesNotExist }}", "line 4"})
+
+}
+
+func TestErrorNestedShortocde(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- config.toml --
+-- content/_index.md --
+---
+title: "Home"
+---
+
+## Hello
+{{< hello >}}
+
 -- layouts/index.html --
 line 1
+line 2
+{{ .Content }}
+line 5
+-- layouts/shortcodes/hello.html --
+line 1
 12{{ partial "foo.html" . }}
 line 4
 line 5
@@ -373,15 +435,183 @@ line 4
 
 	b.Assert(err, qt.IsNotNil)
 	errors := herrors.UnwrapFileErrorsWithErrorContext(err)
+
+	b.Assert(errors, qt.HasLen, 3)
+
+	b.Assert(errors[0].Position().LineNumber, qt.Equals, 6)
+	b.Assert(errors[0].Position().ColumnNumber, qt.Equals, 1)
+	b.Assert(errors[0].ErrorContext().ChromaLexer, qt.Equals, "md")
+	b.Assert(errors[0].Error(), qt.Contains, filepath.FromSlash(`"/content/_index.md:6:1": failed to render shortcode "hello": failed to process shortcode: "/layouts/shortcodes/hello.html:2:5":`))
+	b.Assert(errors[0].ErrorContext().Lines, qt.DeepEquals, []string{"", "## Hello", "{{< hello >}}", ""})
+	b.Assert(errors[1].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "12{{ partial \"foo.html\" . }}", "line 4", "line 5"})
+	b.Assert(errors[2].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "line 2", "123{{ .ThisDoesNotExist }}", "line 4"})
+
+}
+
+func TestErrorRenderHookHeading(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- config.toml --
+-- content/_index.md --
+---
+title: "Home"
+---
+
+## Hello
+
+-- layouts/index.html --
+line 1
+line 2
+{{ .Content }}
+line 5
+-- layouts/_default/_markup/render-heading.html --
+line 1
+12{{ .Levels }}
+line 4
+line 5
+`
+
+	b, err := NewIntegrationTestBuilder(
+		IntegrationTestConfig{
+			T:           t,
+			TxtarString: files,
+		},
+	).BuildE()
+
+	b.Assert(err, qt.IsNotNil)
+	errors := herrors.UnwrapFileErrorsWithErrorContext(err)
+
 	b.Assert(errors, qt.HasLen, 2)
-	fmt.Println(errors[0])
-	b.Assert(errors[0].Position().LineNumber, qt.Equals, 2)
-	b.Assert(errors[0].Position().ColumnNumber, qt.Equals, 5)
-	b.Assert(errors[0].Error(), qt.Contains, filepath.FromSlash(`"/layouts/index.html:2:5": execute of template failed`))
-	b.Assert(errors[0].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "12{{ partial \"foo.html\" . }}", "line 4", "line 5"})
-	b.Assert(errors[1].Position().LineNumber, qt.Equals, 3)
-	b.Assert(errors[1].Position().ColumnNumber, qt.Equals, 6)
-	b.Assert(errors[1].ErrorContext().Lines, qt.DeepEquals, []string{"line 1", "line 2", "123{{ .ThisDoesNotExist }}", "line 4"})
+	b.Assert(errors[0].Error(), qt.Contains, filepath.FromSlash(`"/content/_index.md:1:1": "/layouts/_default/_markup/render-heading.html:2:5": execute of template failed`))
+
+}
+
+func TestErrorRenderHookCodeblock(t *testing.T) {
+	t.Parallel()
+
+	files := `
+-- config.toml --
+-- content/_index.md --
+---
+title: "Home"
+---
+
+## Hello
+
+§§§ foo
+bar
+§§§
+
+
+-- layouts/index.html --
+line 1
+line 2
+{{ .Content }}
+line 5
+-- layouts/_default/_markup/render-codeblock-foo.html --
+line 1
+12{{ .Foo }}
+line 4
+line 5
+`
+
+	b, err := NewIntegrationTestBuilder(
+		IntegrationTestConfig{
+			T:           t,
+			TxtarString: files,
+		},
+	).BuildE()
+
+	b.Assert(err, qt.IsNotNil)
+	errors := herrors.UnwrapFileErrorsWithErrorContext(err)
+
+	b.Assert(errors, qt.HasLen, 2)
+	first := errors[0]
+	b.Assert(first.Error(), qt.Contains, filepath.FromSlash(`"/content/_index.md:7:1": "/layouts/_default/_markup/render-codeblock-foo.html:2:5": execute of template failed`))
+
+}
+
+func TestErrorInBaseTemplate(t *testing.T) {
+	t.Parallel()
+
+	filesTemplate := `
+-- config.toml --
+-- content/_index.md --
+---
+title: "Home"
+---
+-- layouts/baseof.html --
+line 1 base
+line 2 base
+{{ block "main" . }}empty{{ end }}
+line 4 base
+{{ block "toc" . }}empty{{ end }}
+-- layouts/index.html --
+{{ define "main" }}
+line 2 index
+line 3 index
+line 4 index
+{{ end }}
+{{ define "toc" }}
+TOC: {{ partial "toc.html" . }}
+{{ end }}
+-- layouts/partials/toc.html --
+toc line 1
+toc line 2
+toc line 3
+toc line 4
+
+
+
+
+`
+
+	t.Run("base template", func(t *testing.T) {
+		files := strings.Replace(filesTemplate, "line 4 base", "123{{ .ThisDoesNotExist \"abc\" }}", 1)
+
+		b, err := NewIntegrationTestBuilder(
+			IntegrationTestConfig{
+				T:           t,
+				TxtarString: files,
+			},
+		).BuildE()
+
+		b.Assert(err, qt.IsNotNil)
+		b.Assert(err.Error(), qt.Contains, filepath.FromSlash(`render of "home" failed: "/layouts/baseof.html:4:6"`))
+
+	})
+
+	t.Run("index template", func(t *testing.T) {
+		files := strings.Replace(filesTemplate, "line 3 index", "1234{{ .ThisDoesNotExist \"abc\" }}", 1)
+
+		b, err := NewIntegrationTestBuilder(
+			IntegrationTestConfig{
+				T:           t,
+				TxtarString: files,
+			},
+		).BuildE()
+
+		b.Assert(err, qt.IsNotNil)
+		b.Assert(err.Error(), qt.Contains, filepath.FromSlash(`render of "home" failed: "/layouts/index.html:3:7"`))
+
+	})
+
+	t.Run("partial from define", func(t *testing.T) {
+		files := strings.Replace(filesTemplate, "toc line 2", "12345{{ .ThisDoesNotExist \"abc\" }}", 1)
+
+		b, err := NewIntegrationTestBuilder(
+			IntegrationTestConfig{
+				T:           t,
+				TxtarString: files,
+			},
+		).BuildE()
+
+		b.Assert(err, qt.IsNotNil)
+		b.Assert(err.Error(), qt.Contains, filepath.FromSlash(`render of "home" failed: "/layouts/index.html:7:8": execute of template failed`))
+		b.Assert(err.Error(), qt.Contains, `execute of template failed: template: partials/toc.html:2:8: executing "partials/toc.html"`)
+
+	})
 
 }
 
diff --git a/resources/resource_transformers/js/integration_test.go b/resources/resource_transformers/js/integration_test.go
index 0c5b04a51f5..b9f466873d2 100644
--- a/resources/resource_transformers/js/integration_test.go
+++ b/resources/resource_transformers/js/integration_test.go
@@ -209,3 +209,53 @@ TS2: {{ template "print" $ts2 }}
 		function greeter(person) {
 `)
 }
+
+func TestBuildError(t *testing.T) {
+	c := qt.New(t)
+
+	filesTemplate := `
+-- config.toml --
+disableKinds=["page", "section", "taxonomy", "term", "sitemap", "robotsTXT"]
+-- assets/js/main.js --
+// A comment.
+import { hello1, hello2 } from './util1';
+hello1();
+hello2();
+-- assets/js/util1.js --
+/* Some 
+comments.
+*/
+import { hello3 } from './util2';
+export function hello1() {
+	return 'abcd';
+}
+export function hello2() {
+	return hello3();
+}
+-- assets/js/util2.js --
+export function hello3() {
+	return 'efgh';
+}
+-- layouts/index.html --
+{{ $js := resources.Get "js/main.js" | js.Build }}
+JS Content:{{ $js.Content }}:End:
+	
+			`
+
+	c.Run("Import from main not found", func(c *qt.C) {
+		c.Parallel()
+		files := strings.Replace(filesTemplate, "import { hello1, hello2 }", "import { hello1, hello2, FOOBAR }", 1)
+		b, err := hugolib.NewIntegrationTestBuilder(hugolib.IntegrationTestConfig{T: c, NeedsOsFS: true, TxtarString: files}).BuildE()
+		b.Assert(err, qt.IsNotNil)
+		b.Assert(err.Error(), qt.Contains, `main.js:2:25": No matching export`)
+	})
+
+	c.Run("Import from import not found", func(c *qt.C) {
+		c.Parallel()
+		files := strings.Replace(filesTemplate, "import { hello3 } from './util2';", "import { hello3, FOOBAR } from './util2';", 1)
+		b, err := hugolib.NewIntegrationTestBuilder(hugolib.IntegrationTestConfig{T: c, NeedsOsFS: true, TxtarString: files}).BuildE()
+		b.Assert(err, qt.IsNotNil)
+		b.Assert(err.Error(), qt.Contains, `util1.js:4:17": No matching export in`)
+	})
+
+}
diff --git a/resources/resource_transformers/postcss/integration_test.go b/resources/resource_transformers/postcss/integration_test.go
index 5bb1a9ffe1e..4101818be5e 100644
--- a/resources/resource_transformers/postcss/integration_test.go
+++ b/resources/resource_transformers/postcss/integration_test.go
@@ -26,15 +26,10 @@ import (
 	"github.com/gohugoio/hugo/hugolib"
 )
 
-func TestTransformPostCSS(t *testing.T) {
-	if !htesting.IsCI() {
-		t.Skip("Skip long running test when running locally")
-	}
-
-	c := qt.New(t)
-
-	files := `
+const postCSSIntegrationTestFiles = `
 -- assets/css/components/a.css --
+/* A comment. */
+/* Another comment. */
 class-in-a {
 	color: blue;
 }
@@ -98,51 +93,50 @@ module.exports = {
 
 `
 
-	c.Run("Success", func(c *qt.C) {
-		b := hugolib.NewIntegrationTestBuilder(
-			hugolib.IntegrationTestConfig{
-				T:               c,
-				NeedsOsFS:       true,
-				NeedsNpmInstall: true,
-				LogLevel:        jww.LevelInfo,
-				TxtarString:     files,
-			}).Build()
-
-		b.AssertLogContains("Hugo Environment: production")
-		b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("PostCSS Config File: %s/postcss.config.js", b.Cfg.WorkingDir)))
-		b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("package.json: %s/package.json", b.Cfg.WorkingDir)))
-
-		b.AssertFileContent("public/index.html", `
+func TestTransformPostCSS(t *testing.T) {
+	if !htesting.IsCI() {
+		t.Skip("Skip long running test when running locally")
+	}
+
+	c := qt.New(t)
+
+	b := hugolib.NewIntegrationTestBuilder(
+		hugolib.IntegrationTestConfig{
+			T:               c,
+			NeedsOsFS:       true,
+			NeedsNpmInstall: true,
+			LogLevel:        jww.LevelInfo,
+			TxtarString:     postCSSIntegrationTestFiles,
+		}).Build()
+
+	b.AssertLogContains("Hugo Environment: production")
+	b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("PostCSS Config File: %s/postcss.config.js", b.Cfg.WorkingDir)))
+	b.AssertLogContains(filepath.FromSlash(fmt.Sprintf("package.json: %s/package.json", b.Cfg.WorkingDir)))
+
+	b.AssertFileContent("public/index.html", `
 Styles RelPermalink: /css/styles.css
-Styles Content: Len: 770875|
+Styles Content: Len: 770917|
 `)
-	})
-
-	c.Run("Error", func(c *qt.C) {
-		s, err := hugolib.NewIntegrationTestBuilder(
-			hugolib.IntegrationTestConfig{
-				T:               c,
-				NeedsOsFS:       true,
-				NeedsNpmInstall: true,
-				TxtarString:     strings.ReplaceAll(files, "color: blue;", "@apply foo;"), // Syntax error
-			}).BuildE()
-		s.AssertIsFileError(err)
-	})
+
 }
 
-// bookmark2
-func TestIntegrationTestTemplate(t *testing.T) {
-	c := qt.New(t)
+// 9880
+func TestTransformPostCSSError(t *testing.T) {
+	if !htesting.IsCI() {
+		t.Skip("Skip long running test when running locally")
+	}
 
-	files := ``
+	c := qt.New(t)
 
-	b := hugolib.NewIntegrationTestBuilder(
+	s, err := hugolib.NewIntegrationTestBuilder(
 		hugolib.IntegrationTestConfig{
 			T:               c,
-			NeedsOsFS:       false,
-			NeedsNpmInstall: false,
-			TxtarString:     files,
-		}).Build()
+			NeedsOsFS:       true,
+			NeedsNpmInstall: true,
+			TxtarString:     strings.ReplaceAll(postCSSIntegrationTestFiles, "color: blue;", "@apply foo;"), // Syntax error
+		}).BuildE()
+
+	s.AssertIsFileError(err)
+	c.Assert(err.Error(), qt.Contains, "a.css:4:2")
 
-	b.Assert(true, qt.IsTrue)
 }