Conversion error in VS 2010

Question

I have a web application in VS 2003 (1.1) that i need to upgrade to Visual Studio 2010 and target to framework 4.0. But it showing the error like

"Internal MSBuild Error: Setting property without a project and without a pending global properties collection."

Answer 1

I had this problem, and the only thing wrong was that something in the folder was reaonly. Make everything writable and try again.