log4net

To make log4net work with .NET Framework 4, see the following post - link.

In brief, here is the summary of things to do:

    • Comment out
      • // [assembly: System.Security.AllowPartiallyTrustedCallers]
    • Add line
      • [assembly: System.Security.SecurityRules(System.Security.SecurityRuleSet.Level1)]

This made it work for me.