Visual Studio 15.8.1 not running MS unit tests

Question

When I updated Visual Studio to the latest version, 1 of my test projects stopped running tests and outputted this message:

Test project {} does not reference any .NET N

Answer 1

I had to add the following Nuget packages:

MSTest.TestAdapter
MSTest.TestFramework
Microsoft.NET.Test.Sdk

Visual Studio release notes

Answer 2

Since its just a checkbox, Ive tried disabling the following setting before anything else, and it worked!

Tools -> Options -> Test -> "For improved performance, only use test adapters in test assembly folder or as specified in runsettings file"

Answer 3

I had the same issue and none of the answers above worked. Installing NUnit3TestAdapter V3.10.0 fixed it.

Answer 4

Adding NuGet packages doesn't work for me.

Disable the following setting (Tools->Options->Test): "For improved performance, only use test adapters in test assembly folder or as specified in runsettings file" works.

Answer 5

For me I felt very foolish after spending hours, trying EVERYTHING, only to find that I had simply forgotten to add the [TestMethod] directive on the unit test method.