Android Espresso: "No Test Were Found" , "Process Crashed"

When testing my Android app with Espresso, I noticed that running an AndroidTest configured with All in Module finds no tests, while running All in Package succeeds. I created the

Solution 1:

Switching from emulator based on API 10 to API 17 fixed the issue.

Although API 10 was running fine until last week, it has become unpredictable. Sometimes it runs, mostly it doesn't. Removing a single test method might make it work, and placing it back might keep it working (or not). Trying to run the test for the fifth time might make it work again...

UPDATE 2016-03-16: Increasing the resources for the API 10 emulator made the test available for API 10 again...