I am trying to migrate a very large vs2003 web application into vs2008 website project. I have cleared all errors that came in webforms (.aspx pages) but when i tried to build the project, it shows error in temporary files

("C:\WINNT\Micr osoft.NET\Frame work\v2.0.50727 \Temporary ASP.NET Files\html\aebf 4136\82c11106")

There are approx 900 file with names like App_Web_fkpvepk _.42.cs and wellcareupload. ascx.fa0704d0.c ompiled....