Could not load type from assembly error

Question

I have written the following simple test in trying to learn Castle Windsor\'s Fluent Interface:

using NUnit.Framework;
using Castle.Windsor;
using System.Col         


        

Answer 1

This usually happens when you have one version of your assembly deployed in the GAC but has not been updated with new classes that you might have added on the assembly on your IDE. Therefore make sure that the assembly on the GAC is updated with changes you might have made in your project.

E.g. if you have a Class Library of Common and in that Class Library you have Common.ClassA type and deploy this to the GAC strongly-named. You come later and add another type called Common.ClassB and you run your code on your IDE without first deploying the changes you made to the GAC of Common with the newly added Common.ClassB type.