I made an upgrade recently. to version 10. I follow the checklist and apperently all is good, but when i try change an extension and open i got a message (upgrade report: resorces (...)Path\.sln was converted to microsoft visual studio 2013. After change the extension i try publish and i can´t because i receive this error: 

Compiler error
C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.CSharp.targets(132,4): error MSB4067: The element <ImportGroup> beneath element <Project> is unrecognized.

I install Microsoft Build Tools 2013, but without success.



All good,

I only need change MSBUILD from Integration Studio.

Hope help someone