Tag Archives: Visual Studio IDE

Visual Studio 2010 does not recognize asp tags

Visual Studio 2010 suddenly stopped recognizing asp tags in asp.net webpages. I don’t know the exact reason behind this behavior but I think it could be because of IE update (from 9 to 10), installing VS 2012 parallelly on same machine, or corrupted VS data files.

My development machine’s environment was

  • Win7 Professional
  • VS 2010 Professional
  • VS 2010 Professional SP1
  • VS 2012 Ultimate
  • SQL Server 2008 Express Management  Tools

I tried below mentioned workaround to fix the issue but no effect

  • Uninstalling the VS 2012 Ultimate
  • Revert back IE from 10 to 9
  • Repairing VS 2010 Professional SP1

Solution

Finally, deleting the C:\Users\UserName\AppData\Roaming\Microsoft\VisualStudio\10.0 folder resolved the issue.

Note: Replace the UserName with your logged-in username in above string.

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