On csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.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.<br><br>I am running on a Windows XP SP2 box.  I had Visual Studio 2005 installed.<br><br>I recently installed Visual Studio 2008, along with the Microsoft Windows SDK for Windows Server 2008 (6001.18000.367).<br><br>I also have Microsoft Visual C++ Compilers 2008 Standard Edition - enu - x86 (and x64)<br><br>My command line build works properly using MSBuild v3.5.<br><br>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:<br><br>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<br><br>It looks as though this regkey is pointing to the Visual Studio Debugger.<br><br>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.<br><br><br>When I open a vbproj I file in Visual Studio 2008 I get:<br><font style="font-size:12px"> <p>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.</p></font><br><br><br>© 2009 Microsoft Corporation. All rights reserved.Fri, 20 Nov 2009 13:20:35 Z326519bd-bdd1-4154-bc2b-29dadd0d6ceehttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#326519bd-bdd1-4154-bc2b-29dadd0d6ceehttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#326519bd-bdd1-4154-bc2b-29dadd0d6ceeMoemarshttp://social.msdn.microsoft.com/Profile/en-US/?user=MoemarsOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.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.<br><br>I am running on a Windows XP SP2 box.  I had Visual Studio 2005 installed.<br><br>I recently installed Visual Studio 2008, along with the Microsoft Windows SDK for Windows Server 2008 (6001.18000.367).<br><br>I also have Microsoft Visual C++ Compilers 2008 Standard Edition - enu - x86 (and x64)<br><br>My command line build works properly using MSBuild v3.5.<br><br>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:<br><br>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<br><br>It looks as though this regkey is pointing to the Visual Studio Debugger.<br><br>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.<br><br><br>When I open a vbproj I file in Visual Studio 2008 I get:<br><font style="font-size:12px"> <p>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.</p></font><br><br><br>Wed, 04 Jun 2008 18:59:19 Z2008-06-04T21:25:16Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#f4be66bb-4897-46ec-bab7-dd0d74b21a0dhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#f4be66bb-4897-46ec-bab7-dd0d74b21a0dMoemarshttp://social.msdn.microsoft.com/Profile/en-US/?user=MoemarsOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed. I ended up reinstalling<br><br>VS Studio 2005<br>VS Studio 2008<br><br>I also reinstalled the Windows SDK 2008 6.1.<br><br>Then I ran<br><br>devenv /ResetSkipPkgs<br><br><br>I was able to open up csproj and vbproj files.<br><br>To repair my command line I changed my vsvars32.bat file as described here:<br><br><a href="http://msdn.microsoft.com/en-us/windowsserver/bb986638.aspx">http://msdn.microsoft.com/en-us/windowsserver/bb986638.aspx</a> (under 5.1.6)<br><br>KamilFri, 06 Jun 2008 14:39:56 Z2008-06-06T14:39:56Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2bacebba-423d-4896-92e0-d2c7b0f9e6afhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2bacebba-423d-4896-92e0-d2c7b0f9e6afHege Lhttp://social.msdn.microsoft.com/Profile/en-US/?user=Hege%20LOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed. 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.Sun, 31 Aug 2008 19:09:29 Z2008-08-31T19:09:29Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#3813d7c1-e4d7-4393-8253-b4929c34fa7chttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#3813d7c1-e4d7-4393-8253-b4929c34fa7cSkyblue0708http://social.msdn.microsoft.com/Profile/en-US/?user=Skyblue0708On csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.In short run the following in command Prompt:<br/><br/>C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE&gt;devenv /ResetSkipPkgs<br/><br/>Should sort this issue. Happy codingWed, 22 Apr 2009 15:43:36 Z2009-04-22T15:43:36Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2fdbd10c-6e2a-4b66-bd0b-6d2ae32dd275http://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2fdbd10c-6e2a-4b66-bd0b-6d2ae32dd275Indika Rangajithhttp://social.msdn.microsoft.com/Profile/en-US/?user=Indika%20RangajithOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.<blockquote>In short run the following in command Prompt:<br/><br/>C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE&gt;devenv /ResetSkipPkgs<br/><br/>Should sort this issue. Happy coding</blockquote> For me, i didnt reinstall VS. Just running the above commad fixed the issue. Thanks Thu, 28 May 2009 17:12:12 Z2009-05-28T17:12:12Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2958ac51-6fb1-48fa-ac21-0a2251758a03http://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#2958ac51-6fb1-48fa-ac21-0a2251758a03Marc Rousselhttp://social.msdn.microsoft.com/Profile/en-US/?user=Marc%20RousselOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.<blockquote>In short run the following in command Prompt:<br/><br/>C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE&gt;devenv /ResetSkipPkgs<br/><br/>Should sort this issue. Happy coding</blockquote> <br/>AWESOME.  I was about to reinstall and I found this by chance.  <br/>worked like a charm.<br/><br/>But WHY.  What caused this problem and should I care to know anyway ?<br/><hr class="sig">GearThu, 11 Jun 2009 13:40:44 Z2009-06-11T13:40:44Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#53685fb4-b3e9-4e8c-88e8-5f8a3af06d16http://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#53685fb4-b3e9-4e8c-88e8-5f8a3af06d16alrevahttp://social.msdn.microsoft.com/Profile/en-US/?user=alrevaOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.Great solution, thanks alot.Sat, 04 Jul 2009 04:46:11 Z2009-07-04T04:46:11Zhttp://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#bfd25d40-e158-4755-b49c-9b07848daca6http://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/326519bd-bdd1-4154-bc2b-29dadd0d6cee#bfd25d40-e158-4755-b49c-9b07848daca6Yasir Younushttp://social.msdn.microsoft.com/Profile/en-US/?user=Yasir%20YounusOn csproj file open: Microsoft Visual C# 2008 Compiler could not be created. QueryService for '{7D960B16-7AF8-11D0-8E5E-00A0C911005A} failed.<p>nice solution, no need to re-install Visual Studio Just do this </p> <p>go to tools&gt;Visual studio 2008 Command Prompt and type &quot;devenv /ResetSkipPkgs&quot; in command prompt</p> <p>it will resolve the problem :) </p>Fri, 20 Nov 2009 13:20:35 Z2009-11-20T13:20:35Z