project type (.csproj) is not supported by this version of the application when running .sln with VS2010 Command tool
http://social.microsoft.com/Forums/en-US/Offtopic/thread/d80dbf79-5755-4bc7-95b6-202907cc2b47/
I inherited a large .sln file created with a previous version of Visual Studio (VS2005, VS2003). I'm now using Visual Studio 2010. Here's what's installed:Microsoft Visual Studio 2010
Version 10.0.30319.1 RTMRel
Microsoft .NET Framework
Version 4.0.30319 RTMRel
Installed Version: Ultimate
Microsoft Office Developer Tools 01019-532-2002102-70517
Microsoft Visual Basic 2010 01019-532-2002102-70517
Microsoft Visual C++ 2010 01019-532-2002102-70517
Microsoft Visual Studio 2010 Architecture and Modeling Tools 01019-532-2002102-70517
Microsoft Visual Studio 2010 Code Analysis Spell Checker 01019-532-2002102-70517
Microsoft Visual Studio 2010 Team Explorer 01019-532-2002102-70517
Microsoft Visual Web Developer 2010 01019-532-2002102-70517
Crystal Reports Templates for Microsoft Visual Studio 2010
Microsoft Visual Studio 2010 SharePoint Developer Tools 10.0.30319
When I open a command prompt to use devenv to build the solution, I get a lot of error messages like the following. How can I fix these? I've opened the .sln file inside VS2010, but I don't know what else to do.
'C:\home\autostart\src-Trunk\utility\UpdateManager\UpdateManager\UpdateManager.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.
'C:\home\autostart\src-Trunk\utility\UpdateManager\RegisterUpdate\RegisterUpdate.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.
'C:\home\autostart\src-Trunk\utility\UpdateManager\ManifestGenerator\ManifestGenerator.csproj' cannot be opened because its project type (.csproj) is not supported by this version of the application.
To open it, please use a version that supports this type of project.
If you want to open a project (.csproj) file that was created in a previous version of Visual Studio, then you need to run Visual Studio (devenv.exe) from the Visual Studio Command Prompt after providing options to clear all SkipLoading tags.
So you can go to Start Menu -> All Programs -> Microsoft Visual Studio 2010 -> Visual Studio Tools -> Visual Studio Command Prompt. Once you are in the command prompt, enter:
Devenv.exe /ResetSkipPkgs
This will open Visual Studio 2010. Then try to open your solution or project from the previous version from the File menu, and it will launch the conversion wizard to convert it to Visual Studio 2010.
