How to solve ” Could not load file or assembly ‘…’ or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0×80070057″ Error

Last day I have faced an error when I am compiling my ASP.net MVC application and this is for illegal shutdown of my computer.

Here is my Error: ” Could not load file or assembly ‘EntityFramework’ or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0×80070057 “

Similar types of Error:Could not load file or assembly ‘AjaxControlToolkit’ or one of its dependencies. The parameter is incorrect. (Exception from HRESULT: 0×80070057 “

How to Fix/ Solve this problem: Just do following.

1.  Just go to following derictory

%SystemRoot%Microsoft.NETFrameworkversionNumberTemporary ASP.NET Files
This is something Like

C:WindowsMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Files

Then Delete temporary asp.net files. If your .net version is 4 then you have to go 
following directory.

C:WindowsMicrosoft.NETFrameworkv4.0.30319Temporary ASP.NET Files

Then Compile you Application. Hope it will work now. If not Go to Step 2.

2. Go to following Directory
%LocalAppData%TempTemporary ASP.NET Files
Something like
c:Users[Usuario]AppDataLocalTempTemporary ASP.NET Files

Then delete all temporary file.


Now you can run your application without problem!!!


  • fgCode

    worked for me!

  • http://www.facebook.com/people/Thiago-Moreira/100000470393609 Thiago Moreira

    worked for me!²

    • Anonymous

      Glad to hear that it works for you…..