Error Debugging MVC 4 web application on IIS

Question

I am using visual studio 2010 and have installed mvc 4. When debugging using the vs development server the sample web application works perfectly but if i try to debug with IIS i get the following error:

Could not load file or assembly 'Microsoft.VisualStudio.QualityTools.HostAdapters.ASPNETAdapter, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

I do not have any references to quality tools in web.config, have tried to add them but still did not work. I also tried o use the aspnet_regiis tool just in case.

i have also tried to target different x64 or x86 platform but it did not make a difference.

My dev machine is windows 7 64 bit

Answer 1

You can find an answer here

This error is caused by mixed development environment. That means you have build the service with .NET 4 at he x64 machine and somebody else is trying to host the service at his x86 development machine

If it doesn't work, check that the target framework is 4.0