[Android] java.lang.RuntimeException: Requested enabled DevSupportManager, but DevSupportManagerImpl class was not found or could not be created 오류 해결법

https://stackoverflow.com/questions/60926425/java-lang-runtimeexception-requested-enabled-devsupportmanager-but-devsupportm

java.lang.RuntimeException: Requested enabled DevSupportManager, but DevSupportManagerImpl class was not found or could not be c

+ 아래 import도 해줘야 함

import android.content.BroadcastReceiver;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Build;
import org.jetbrains.annotations.Nullable;