Issue 1:
I'm submitting a bug report

Webpack version:

2.x, 2.1.0-beta.20, from master (as of 2553f49)

Please tell us about your environment:

OSX 10.x

Current behavior:

Warnings like:

WARNING in ./index.js
9:12 export 'x' was not found in './dep.js'

duplicated multiple times on each rebuild in watch mode.

Expected/desired behavior:

Warnings should be reported only once per occurrence.

Repro

See https://github.com/andreypopp/wp2-stats-issue

Issue 2:
Sorry for duplicate issues but I'm really unsure what repo this issue belongs in. webpack-contrib/eslint-loader#80. Looking at the updated dependencies I'm guessing this is some sort of issue with acorn versions but I'm not sure?

Webpack 2 has a dependency on "acorn": "^2.4.0", and Eslint 2 has a dependency on "espree": "^3.0.0" which in turn has a dependency on "acorn": "^2.7.0".

Webpack 2 => "acorn": "^2.4.0"

Eslint 2 => "espree": "^3.0.0" => "acorn": "^2.7.0"

Eslint 2 has a dependency on "espree": "^2.2.4" which in turn has NO acorn dependency so I'm guessing whatever is happening is some sort of conflict in acorn but I'm unsure how this plays out.

Webpack 2 => "acorn": "^2.4.0"

Eslint 1 => "espree": "^2.2.4"

I think this could be an NPM 3 semver thing where NPM tries to be smart and and sees two versions of acorn with ^2.x and extracts them out into the root of node_modules

Upon updating to Eslint 2 and Webpack 2 I get an error in espree shown below. With Webpack 1 I don't get this error, and with Webpack 2.0.7.-beta and Eslint 1.x I don't get the error as well. If you have any ideas and cold point me in the right direction I'd appreciate it.

{
"parser": "babel-eslint",
"plugins": [
"react"
],
"env": {
"browser": true,
"node": true
},
"parserOptions": {
"ecmaVersion": 6,
"sourceType": "module",
"ecmaFeatures": {
"arrowFunctions": true,
"blockBindings": true,
"experimentalObjectRestSpread": true,
"generators": true,
"jsx": true,
"module": true,
"modules": true,
"restParams": true,
"spread": true,
"jsx": true
}
}
}

ERROR in ./src/js/index.js
Module parse failed: /Users/davidfox-powell/dev/frontend-boilerplate/node_modules/babel-loader/index.js?{"presets":["react","es2015","stage-0"],"plugins":["transform-runtime","transform-decorators-legacy","typecheck",["react-transform",{"transforms":[{"transform":"react-transform-hmr","imports":["react"],"locals":["module"]},{"transform":"react-transform-catch-errors","imports":["react","redbox-react"]}]}]]}!/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/eslint-loader/index.js!/Users/davidfox-powell/dev/frontend-boilerplate/src/js/index.js
Cannot read property 'ecmaFeatures' of undefined
You may need an appropriate loader to handle this file type.
TypeError: Cannot read property 'ecmaFeatures' of undefined
at Parser.parseTopLevel (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/espree/espree.js:271:18)
at Parser.parse (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/acorn/dist/acorn.js:1636:17)
at Object.parse (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/acorn/dist/acorn.js:905:44)
at Parser.parse (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/webpack/lib/Parser.js:960:18)
at Module.<anonymous> (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/webpack/lib/NormalModule.js:192:16)
at /Users/davidfox-powell/dev/frontend-boilerplate/node_modules/webpack/lib/NormalModule.js:160:10
at /Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:334:3
at iterateNormalLoaders (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:182:10)
at iterateNormalLoaders (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:189:10)
at /Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:204:3
at Object.context.callback (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:87:13)
at Object.module.exports (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/babel-loader/index.js:89:8)
at LOADER_EXECUTION (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:95:14)
at runSyncOrAsync (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:96:4)
at iterateNormalLoaders (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:200:2)
at iterateNormalLoaders (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:189:10)
at /Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:204:3
at Object.context.callback (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:87:13)
at Object.module.exports (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/eslint-loader/index.js:113:8)
at LOADER_EXECUTION (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:95:14)
at runSyncOrAsync (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:96:4)
at iterateNormalLoaders (/Users/davidfox-powell/dev/frontend-boilerplate/node_modules/loader-runner/lib/LoaderRunner.js:200:2)
@ multi main