Testprojects in different directories Deploying problems in Visualstudio(C#)

I have a problem: I have different Testprojects in different testdirectories. ...\rootRepository\anotherDirectory\Testing\Testproject1.csproj ...\rootRepository\NewTestDirectoryWhereAllTestsFrom_anotherDirectory_ShouldBePostponed\Testproject2Copy_ThisIsAnOtherTestProject.csproj

If i only run the testproject "Testproject2Copy_ThisIsAnOtherTestProject.csproj" everthing is working correctly, but if i run "Testproject2Copy_ThisIsAnOtherTestProject.csproj" and "Testproject1.csproj" together then i get for all tests in Testproject2Copy_ThisIsAnOtherTestProject.csproj the error: Microsoft.VisualStudio.TestTools.UnitTesting.AssertFailedException: Assert.Fail failed. Test file '......\TestResults\Deploy_xxxDate\Out..\example.cmd' does not exist.. Aborting test execution