The following test project is configured to run on an older version of the .NET Framework: {0}. The version of the .NET framework ...

The following test project is configured to run on an older version of the .NET Framework: {0}.

The version of the .NET framework for your code project and the corresponding tests in your test project must match. If you upgraded your code, you must also upgrade the test project or it will not build or run. If you did not upgrade your code project, then you should not upgrade your test project to use .NET Framework 4.

Do you want to upgrade this test project to use .NET Framework 4?