After deployment of an app to Google Play Beta I see next issue in Crashlytics (6 - 7 users are affected)
Fatal Exception: java.lang.IllegalStateException: UiAut
It seems that this crash is related to UI testing in your app. If you don't have any UI testing and there are only default settings which added automatically during creating the project, you should remove from your build.gradle the line testInstrumentationRunner in defaultConfig
defaultConfig {
....
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
and androidTestCompile, testCompile in dependencies
dependencies {
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2',
{
exclude group: 'com.android.support', module: 'support-annotations'
})
testCompile 'junit:junit:4.12'
...