Running Pex with .NET 3.5 projects

I'm currently trying to use Pex and Moles with a SharePoint 2010 solution that's written in .NET 3.5. When adding a test project (by using Pex -> Create parameterized tests) everything seems to work OK. However, when I try to compile I end up with a massive list of errors (missing namespaces and such) and warnings regarding referenced assemblies not being able to be resolved (such as System.Web which under .NET 4 is no single DLL anymore).

This is due to the projects under test is .NET 3.5 and the Pex test project开发者_如何学编程 is .NET 4.0 as far as I understand it, but is it possible to make this combination work at all?

If you change the project Target Framework to ".Net Framework 3.5" and then open the project AssemblyInfo.cs file and comment out the following line:

[assembly: SecurityRules(SecurityRuleSet.Level1)]

the project should build. How this affects PEX and its "Explorations" I am not sure. I hope this gets you a little further down the road.

The answer is here: http://msdn.microsoft.com/en-us/library/system.reflection.assembly.securityruleset.aspx

"By default, assemblies that you compile with the .NET Framework version 4 have level 2 transparency, although you can explicitly make them level 1 instead.Assemblies that were compiled with earlier versions of the .NET Framework have level 1 transparency"