Original Gradle file:
dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) // Testing dependencies compile 'com.google.android.gms:play-services-gcm:9.4.0' compile 'com.android.support:appcompat-v7:24.0.0' compile 'com.android.support.constraint:constraint-layout:+' compile 'com.android.support:design:24.2.1' androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2' androidTestCompile 'com.android.support.test:runner:0.5' androidTestCompile 'com.android.support:support-annotations:24.0.0' }
androidTestCompile 不匹配
FIXED when I added:
androidTestCompile 'com.android.support:support-annotations:24.2.1'