AndroidJUnit4.class is deprecated: How to use androidx.test.ext.junit.runners.AndroidJUnit4?

Question

For my instrumentation tests I was using

@RunWith(AndroidJUnit4.class)

from

import androidx.test.runner.AndroidJUnit4;
         


        

Answer 1

Solution

1. Add this line in to build.gradle: androidTestImplementation 'androidx.test.ext:junit:1.1.1'

2. Change AndroidJUnit4 to AndroidJUnit4ClassRunner in the test class

Warning

I got the same error, but the following solution failed for me:

File -> Invalidate Caches..., and select Invalidate and Restart