Intellisense not working on MVC

Recently I had an opportunity to work on an Microsoft MVC 2 project. For me, the intellisense didn't work on the MVC web pages.

I also got the below run time error because of using the log4net dll. However, the reference to the dll was correct.

"ASP.NET runtime error: Could not load file or assembly 'log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821' or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))".

Solution:

The Solution is to clear the "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\" files. It works now! Cheers!!!