1- could not find xml file where at C:\Windows\Microsoft.NET\Framework\v4.0.30128\Config\machine.config
solution: copy and rename v4.0.30319 as v4.0.30128（old and wrong）
solution2: because vs2010 is RC version, so it has V4.0.30128, you can uninstall .net framework 4
and reinstall, but it may occur again, so download VS2010 release version like
Microsoft Visual Studio 2010 Ultimate Trial - ISO
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=06A32B1C-80E9-41DF- BA0C-79D56CB823F7
2- close VS2010 completely before shut down PC
problem: restart VS2010, could not open with error messge "the operation could not be completed"
solution: reinstall (haha)
3
window7 64bit for vs2010 problem
http://blog.foreverlove.us/707.html
