vstest - TFS Tests do not match framework settings

Question

I am attempting to move a solution from TFS 2012 to TFS 2018 SP2RC2 but I can't get the unit tests to run correctly. All projects have been re-targeted to 4.7.1 and are built as x86 platform. We have a testsettings file that supplies nothing but deployment items. I am using the new VSTest Platform Installer task (as directed by MS) and the VS Test Task. At the start of the test run I get the following message:

Test run will use DLL(s) built for framework .NETFramework,Version=v4.5 and platform X86. Following DLL(s) do not match framework/platform settings.

So all of the test are skipped as they target 4.7.1. Where is this 4.5 setting coming from? I cannot find it specified anywhere and can't figure out how to change it.

Answer 1

There is a /Framework: parameter that you can specify to VSTest.

In your case, you should specify /Framework:.NETFramework,Version=v4.7.1

See more at https://msdn.microsoft.com/en-us/library/jj155796.aspx?f=255&mspperror=-2147217396