ERROR: Unable to load one or more of the requested types

When I was trying to deploy a web part using CTP release of VSeWSS 1.3 for Visual Studio 2008, I got the following error:

VSeWSS Service Error: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information

The solution: I've found the following steps solving this error, here are the steps: 1. Add the All referenced assemblies to the GAC 2. Restart IIS 3. Clean the project in Visual Studio 4. Redeploy your solution again, Then everything will work.

Thanks, Mohammad AlShafe'i