Still get the following error when attempting to read app.config file
Error	2	Running transformation: System.UnauthorizedAccessException: Access to the path 'C:\GitHub\Experiments\GenerateConfigClassUsingT4' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
   at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials, IWebProxy proxy, RequestCachePolicy cachePolicy)
   at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
   at System.Xml.XmlTextReaderImpl.FinishInitUriString()
   at System.Xml.XmlTextReaderImpl..ctor(String uriStr, XmlReaderSettings settings, XmlParserContext context, XmlResolver uriResolver)
   at System.Xml.XmlReaderSettings.CreateReader(String inputUri, XmlParserContext inputContext)
   at System.Xml.XmlReader.Create(String inputUri, XmlReaderSettings settings, XmlParserContext inputContext)
   at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options)
   at Microsoft.VisualStudio.TextTemplating9F1456BE30F605145E94760B64464E479F37FA31B4B91A7820B67A6F908656D7FCB4A80D96E8EFEB2DC748BE400E6860B6186C83D5C44436C6F60BF716D15E62.GeneratedTextTransformation.TransformText()	C:\GitHub\Experiments\GenerateConfigClassUsingT4\ConfigGen.tt	1	1	ConfigClassGen