I have encountered an odd problem. When I run all tests in Visual Studio 2015 a lot of them fail with a message like this;
"Mixed mode assembly is built against version 'v2.0.50727' of the runtime
and cannot be loaded in the 4.0 runtime without additional configuration
information."
When I run the tests in Visual Studio 2013 I do not get those errors. In my test project's app.config I already have this set in the configuarion node.
<startup useLegacyV2RuntimeActivationPolicy="true"><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup>
Any suggestions on how I can run my tests so I can switch to 2015 completely?