Compile project with error: The project file 'XXX.csproj' cannot be opened.

I just wanna compile the project e on output I'm receive the error below:

XXX.csproj : error : The project file 'XXX.csproj' cannot be opened.
The project type is not supported by this installation.
Some of the properties associated with the solution could not be read.


Someone can help me,please?
I'm using VS2010 with SP1 and MVC1,2,3 and 4 installed. Framework 4.5 SDK too.