Sync with visual studio 2010 error

I’m working with visual studio 2010 express for windows phone to edit my c# scripts on windows 7 x64, the problem is that when i right-clicking on my script file → “Sync MonoDevelopment Project” it opens the project on c# and the error: Assembly-UnityScript-firstpass.unityproj cannot be opened because its project type (.unityproj) is not supported by this version of the application.

After i click “Ok” everything seems normal, i can edit my scripts using intellisence, the thing is i’m not sure what consequences it may cause. Does anyone has the same error?

I’m not sure… I’m having the same issue, but I just ignore it. I mean, VisualStudio can’t open the project, so it can’t change anything and therefore there should be no consequences. Also, I’m clicking away these messages for quite a long time now and have not experienced any problems yet.