Configuration error for phpBB3 with MVC2

[keego]

Hi there,

Were having trouble setting up a phpBB3 forum. We get the following error:

"Could not load file or assembly 'System.Web.Mvc, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified."

You can see the full error at: http://keegotech.com/forum

Our MVC application is working perfectly and we uploaded the DLL just fine. However, the phpBB3 application we tried to install does not work and is throwing up the MVC error. We have the MVC application as the root app and the phpBB3 application as a subfolder.

Any suggestions?

Thank you for your help!

[CrystalCMS]

It's a web.config inheritance problem. Your forum sub-application is inheriting the web.config from the root web application that is including the reference to the System.Web.Mvc assembly.

It's an issue that's been discussed here many times and most posts wind up pointing to this: http://blogs.iis.net/steveschofield/archive/2009/09/19/control-web-config-inheritance-with-iis-7-asp-net-options.aspx