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Visual Studio 2010 Error HRESULT E_FAIL has been returned from a call to a COM component.


I was using Visual Studio 2010.  I was debugging a web application and an exception happened and VS 2010 froze.  I ended the VS 2010 in the task manager and when I went back to developing, I found on every form for every ASP.net control I get:
 Error Creating Control -
Error HRESULT E_FAIL has been returned from a call to a COM component. 
Also I am unable to edit  the form or add anything from the toolbox.
Solution:
This error comes because of Caching of Visual Studio
Delete the Cache.
You can delete the project cache at "Program Files\Microsoft Visual Studio 10.0\Common7\IDE\ProjectTemplatesCache", then run "devenv /setup" to build the cache again to see if it helps.

Comments

  1. TheGreenLlamaSeptember 10, 2012 at 7:26 PM

    This worked great - thank you! In my case, the designer was throwing up E_FAILs for my master page and intellisense started to get 'confused'. This sorted both out.

    ReplyDelete
  2. Kris AllenJanuary 11, 2013 at 8:33 PM

    Worked great for me too, thanks :)

    ReplyDelete
  3. AnonymousMay 16, 2014 at 1:15 PM

    its not working to re-install cache.please help

    ReplyDelete
  4. UnknownJune 17, 2014 at 11:01 AM

    Removing and re-adding work for me

    ReplyDelete
  5. ManivasagamFebruary 24, 2015 at 4:30 PM

    This error occurs when open pdf files from my application.I have distributed my app's setup to all clients and application working fine except this error.So how to fix this from client's system now.??

    ReplyDelete
  6. MastermindMarch 10, 2015 at 11:09 AM

    It didn't work for me. Do I have to restart my server?

    ReplyDelete
  7. AnonymousMay 27, 2015 at 5:28 PM

    didn't work for me

    ReplyDelete
  8. UnknownSeptember 7, 2015 at 4:35 PM

    Ho to run "devenv /setup" to build the cache again

    ReplyDelete
    Replies
    1. KrunalSeptember 25, 2015 at 10:55 AM

      Hi Raj,

      To run devenv /setup" to build the cache again below is the path.

      Start—>Run—> C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe /setup

      Delete

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