artilla's blog

There is an error of RxJava when generating signed apk using proguard in Android Studio. The solution in my case is this link . Add the following at the proguard rules. -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* { long producerIndex; long consumerIndex; } -keepclassmembers class rx.internal.util.unsafe.BaseLinkedQueueProducerNodeRef { long producerNode; long consumerNode; }

If to remove Log.x for release, set ProGuard in build.gradle as follow proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' and add those to proguard-rules.pro   -assumenosideeffects class android.util.Log {       public static *** d(...);       ..   } Be careful, assumenosideeffects  make effect at optimization level, so you should use proguard-android-optimize.txt instead proguard-android.txt