Visual Studio 2015 Editor Exception with no Intellisense in ASP.NET MVC Page [duplicate]

When i write code and see the very first intellisense of visual studio session in ASP.NET MVC PAGE.

I get an error about the exception has been logged to activity xml file. I have checked and found the following exception there logged.

System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Users\shana\AppData\Local\Microsoft\VisualStudio\14.0\Extensions\ersr2sv2.l3w\html\schema\schemas\aurelia.png'. 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) at System.Windows.Media.Imaging.BitmapDecoder.SetupDecoderFromUriOrStream(Uri uri, Stream stream, BitmapCacheOption cacheOption, Guid& clsId, Boolean& isOriginalWritable, Stream& uriStream, UnmanagedMemoryStream& unmanagedMemoryStream, SafeFileHandle& safeFilehandle) at System.Windows.Media.Imaging.BitmapDecoder.CreateFromUriOrStream(Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, RequestCachePolicy uriCachePolicy, Boolean insertInDecoderCache) at System.Windows.Media.Imaging.BitmapImage.FinalizeCreation() at System.Windows.Media.Imaging.BitmapImage.EndInit() at System.Windows.Media.Imaging.BitmapImage..ctor(Uri uriSource, RequestCachePolicy uriCachePolicy) at Microsoft.Html.Editor.Schemas.Model.SchemaCompletionGlyphService.LoadGlyph(IHtmlSchema schema, String iconName) at Microsoft.Html.Editor.Schemas.Model.SchemaCompletionGlyphService.GetAttributeGroupCompletionIcon(IList`1 supplementalSchemas, ImageSource& glyph, String& iconAutomationText) at Microsoft.Html.Editor.Completion.Html.InitialAttributeGroupCompletion.GetEntries(HtmlCompletionContext context) at Microsoft.Html.Editor.Completion.HtmlCompletionSource.<>c__DisplayClass12_0.b__0() at Microsoft.Web.Editor.Utility.GuardedOperations.InvokeExtensionPoint(Object errorSource, Action action)

• What kind of extension is ersr2sv2.l3w and have you removed aurelia.png? - Sybren
• i have no idea also i dont have any folder with this name in extensions folder - Shan Khan
• Is the extension in the Visual Studio Application Designer > Extensions tab ? - Sybren
• do you mean by extension window. I dont see ersr2 extension in that window installed extensions. Where is Visual Studio Application designer ? - Shan Khan
• Solution Explorer > Open the project properties > Application Designer > Extensions - Sybren