Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by Mr X
, 1 year ago
Unknown operation string: android:system_alert_window
java.lang.IllegalArgumentException: Unknown operation string: android:system_alert_window	at	at	at com.windowmanager.demo.util.MIUIUtils.isFloatWindowOpAllowed(	at com.windowmanager.demo.compat.WindowManagerPermissionCompat$MIUIRomCompatImpl.hasFloatWindowPermission(	at com.windowmanager.demo.compat.WindowManagerPermissionCompat.hasFloatWindowPermission(	at com.windowmanager.demo.addons.settings.WindowManagerActivity.onCreate(	at	at	at	at	at$800(	at$H.handleMessage(	at android.os.Handler.dispatchMessage(	at android.os.Looper.loop(	at	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(	at$	at