Android Studio：Could not find class android.util.ArrayMap

Could not find slices in APK; aborting.

Could not find class ' Android .util.ArrayMap', referenced from method

Could not find class 'android.util.ArrayMap', referenced from method com.android.tools.fd.runtime.MonkeyPatcher.pruneResourceCache

不是程序的BUG，是AS的问题

解决办法：

File - Settings - Build,Execution,Deployment - Instant Run，去掉Enable Instant Run...边上的钩，点击OK即可。