I am working on a project which was previously on DNN 6. Because of security reasons the DNN framework need to be upgraded to DNN 7. To that I firstly upgraded it to 6.2.8, website was working fine without any issues.
Then after upgrading to DNN 7.3.2 it gives a 500 error when I try to login.
In the exception, it says that EnterpriseLibrary.Validation file cannot be found. Can someone please help me to solve this problem.
Here is the stack trace,
DotNetNuke.Services.Exceptions.PageLoadException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Practices.EnterpriseLibrary.Validation, Version=3.1.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
I fixed the problem by my own and I just had to install the correct version of the EnterpriseLibrary.Validation to support .Net v4.0.