CS0433: The type 'asp_XXX_ascx' exists in both 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\aa8e7042\2ecf8c99\xxxx.ascx.60cce07f.1fiwcbvl.dll' and 'c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\aa8e7042\2ecf8c99\App_Web_uynms6lu.dll'
1 Answer
Open the folder C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files and delete everything you see in it. It may show warnings like admin permissions required etc. Just choose to continue deleting.
If you are not able to delete something, stop IIS, delete it and then start it again.
Temporary ASP.NET Filesand try again.