On csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.

Question

I wasn't sure if I should post this under the VS Install Group but after some investigation this seems to be a debugger problem.

I am running on a Windows XP SP2 box.  I had Visual Studio 2005 installed.

I recently installed Visual Studio 2008, along with the Microsoft Windows SDK for Windows Server 2008 (6001.18000.367).

I also have Microsoft Visual C++ Compilers 2008 Standard Edition - enu - x86 (and x64)

My command line build works properly using MSBuild v3.5.

But, when I go to open up any .csproj file (which has been converted to vsstudio 2008 proj file) in visual studio 2008 I get the error:

Project 'x' could not be opened because the Microsoft Visual C# 2008 Compiler could not be created.  QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A}' failed

It looks as though this regkey is pointing to the Visual Studio Debugger.

Should it be pointing to a specific location?  Does visual studio 2008 have a specific location?  I believe it is pointing to an inccorect file.


When I open a vbproj I file in Visual Studio 2008 I get:

The Visual Studio Debugger ({C9DD4A57-47FB-11D2-83E7-00C04F9902C1}) did not load because of previous errors. For assistance, contact the package vendor. To attempt to load this package again, type 'devenv /resetskippkgs' at the command prompt.

Answer 1

I ended up reinstalling

VS Studio 2005
VS Studio 2008

I also reinstalled the Windows SDK 2008 6.1.

Then I ran

devenv /ResetSkipPkgs


I was able to open up csproj and vbproj files.

To repair my command line I changed my vsvars32.bat file as described here:

http://msdn.microsoft.com/en-us/windowsserver/bb986638.aspx (under 5.1.6)

Kamil

Answer 2

I got the same error after installing Visual Studio 2008 SP1. I have a 64-bits machine with Windows Server 2008. I reinstalled Visual Studio 2008 and Team System explorer and ran devenv /ResetSkipPkgs. It might solve the problem just to run devenv /ResetSkipPkgs.

Answer 3

In short run the following in command Prompt:

C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE>devenv /ResetSkipPkgs

Should sort this issue. Happy coding

Answer 4

In short run the following in command Prompt:

C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE>devenv /ResetSkipPkgs

Should sort this issue. Happy coding

For me, i didnt reinstall VS. Just running the above commad fixed the issue. Thanks 

Answer 5

In short run the following in command Prompt:

C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE>devenv /ResetSkipPkgs

Should sort this issue. Happy coding

AWESOME.  I was about to reinstall and I found this by chance. 
worked like a charm.

But WHY.  What caused this problem and should I care to know anyway ?

---

Gear

Answer 6

Great solution, thanks alot.

Answer 7

nice solution, no need to re-install Visual Studio Just do this 

go to tools>Visual studio 2008 Command Prompt and type "devenv /ResetSkipPkgs" in command prompt

it will resolve the problem :)