[DevExpress Support Team: CLONED FROM T612943: Test Runner - It is impossible to run MSTests with the Visual Studio's 15.6.0 update]
Upgrading to 17.2.7 actually caused this error to occur for me. I rolled back to 17.2.6, and everything works. I am running Visual Studio 15.5.2.
Actually, in my case the missing method is GetTestContainer, not FindTestContainer. So apparently Microsoft must have renamed that method for Visual Studio 15.6.
Hi Joe,
Thank you for pointing out this issue. I have reproduced it on my side and we are working on it.
Also, we recommend you update Visual Studio because we are trying to ensure correct work of our product in the latest Visual Studio version.