Android Espresso: PerformException

Question

I`m getting

android.support.test.espresso.PerformException: Error performing \'send keyCode: 4, metaState: 0 key event\' on view \'Animations or tra

Answer 1

I had a similar error but after inspecting the logcat, I realised the fragment under test was trying to do a navigation and the nav graph wasn't defined in the test because the fragment had been launched with launchFragmentInContainer. Fixing that fixed the issue.