Could not load file or assembly 'Microsoft.Practices.Unity'

Question

I am trying to upgrade Unity to version (2.1.505.2), but when I run the application I get the following FileLoadException

Could

Answer 1

The problem was another Microsoft dll that refers to the old version of unity. I found this out be accident be checking the namespaces of every referenced dll, and found another dll that contained namespaces with "unity".

Updating:

• Microsoft.Practices.EnterpriseLibrary.Common
• Microsoft.Practices.EnterpriseLibrary.Validation

to latest released versions resolved the problem.

I hope I save the day for some lost soul out there who's also pulling his hair out over this issue... :)