Could not determine target device configuration on test execution

[ChristianGalla]

Describe the bug

I was able to execute unit tests using MSTest.

After updating MSTest.TestAdapter and MSTest.TestFramework from 3.6.4 to 3.7.0, test cannot be executed anymore.

Test output:

Building Test Projects
Could not determine target device configuration. Exception: System.Runtime.InteropServices.COMException (0x80020009): The method or operation is not implemented.
   at EnvDTE.Property.get_Value()
   at Microsoft.VisualStudio.TestWindow.ShellServices.ProjectDataImpl.<GetRemoteMachineAddressAsync>d__36.MoveNext()
Executing all tests in project: AutoStartConfirmTests
========== Starting test run ==========
========== Test run aborted: 0 Tests (0 Passed, 0 Failed, 0 Skipped) run in < 1 ms ==========

This looks like a regression of 2.2.9: #6258 (comment)

Steps to reproduce the bug

1. Checkout my branch https://github.com/ChristianGalla/AutoStartConfirm/tree/mstest-3.7.0
2. Execute the test project

As an alternative the same issue should occur on other test projects that have MSTest.TestAdapter and MSTest.TestFramework installed in version 3.7.0.

Expected behavior

Tests can be discovered and executed.

Screenshots

No response

NuGet package version

None

Windows version

No response

Additional context

Language: C#
OS: Windows 10 22H2
Framework: .NET 9
Packaging: unpackaged
Windows App SDK version: 1.6.241114003

[marcelwgn]

Can you try see if this reproduces with the latest MSTest version? Creating a new unit test app which uses MSTest 3.8.3 and running the tests inside that worked on my machine.

[ChristianGalla]

Looks like it is working now.

In my solution, updating the test framework was not sufficient. I also had to update Visual Studio, create a new test project using the test project template and copy all my old tests.

I compared the new test project with my old one but was not able to isolate a setting that caused this error.