Test Framework on KitKat 4.4 failed: Instrumentation run failed due to 'java.lang.ClassNotFoundException'

user_3060162 0
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Client not ready yet.. Started running tests Test running failed: Instrumentation run failed due to 'java.lang.ClassNotFoundException' Empty test suite.

android-studio junit4 android
2 Answers

Either you put your tests in "test" folder of your Android Studio project and should put them in "androidTest" folder, or the other way around.

user_23750900

I ran into this error and fixed it by Migrating the project to Androidx.

user_15782220
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