I am able to reproduce the error you are getting:
Here’s how I did it:
- I am in a project A.
- I right clicked on a workflow in project A and select Create test case.
- Then under the location for that, I provided name of another project B/tests folder
- And the error showed.
I think you might be doing the same thing.
Could you please check if the project->tests folder you are providing under location is the same where you are trying to create a test case?
Regards
Sonali