I\'m experiencing this crash when using proguard after integrating the NavigationComponent (android.arch.navigation:navigation-fragment-ktx:1.0.0-alpha01) into
android.arch.navigation:navigation-fragment-ktx:1.0.0-alpha01
This is fixed since Android Gradle Plugin 4.1.
No need to define Proguard rules for fragments defined in the android:name attribute.
android:name
See https://issuetracker.google.com/issues/142601969