Warning: ClassLoader referenced unknown path in Android Studio 2.1.2

Question

I'm new to Android and Android Studio. I created a HelloWorld project in Android Studio. When I'm running the app on my device I get following warnings.. How can I fix these warnings?

6-15 11:21:22.287 962-962/com.rajiv.helloworld W/System: ClassLoader referenced unknown path: /data/app/com.rajiv.helloworld-1/lib/arm
06-15 11:21:23.136 962-962/com.rajiv.helloworld W/System: ClassLoader referenced unknown path: /data/app/com.rajiv.helloworld-1/lib/arm
06-15 11:21:23.424 962-962/com.rajiv.helloworld W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable

Answer 1

It's a issue with instant-Run and for warning Before Android 4.1 as doc says:

Instant Run is supported only when you deploy the debug build variant, use Android Plugin for Gradle version 2.0.0 or higher, and set minSdkVersion to 15 or higher in your app's module-level build.gradle file. For the best performance, set minSdkVersion to 21 or higher.

you can see full documentation here.

Recommended to disable Instant-run or set min-sdk to 15 or higher.