02-13 17:08:57.467 22513 22724 E AndroidRuntime: FATAL EXCEPTION: Thread-7
02-13 17:08:57.467 22513 22724 E AndroidRuntime: Process: appinventor.ai_froniu84a.test23, PID: 22513
02-13 17:08:57.467 22513 22724 E AndroidRuntime: java.lang.RuntimeException: Can't create handler inside thread Thread[Thread-7,5,main] that has not called Looper.prepare()
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at android.os.Handler.<init>(Handler.java:205)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at android.os.Handler.<init>(Handler.java:118)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at android.app.Dialog.<init>(Dialog.java:152)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at android.app.AlertDialog.<init>(AlertDialog.java:201)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at android.app.AlertDialog$Builder.create(AlertDialog.java:1123)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.google.appinventor.components.runtime.util.RuntimeErrorAlert.alert(RuntimeErrorAlert.java:25)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at appinventor.ai_froniu84a.test23.Screen1.processException(Screen1.yail:10106)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at appinventor.ai_froniu84a.test23.Screen1.dispatchEvent(Screen1.yail:10160)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.google.appinventor.components.runtime.EventDispatcher.delegateDispatchEvent(EventDispatcher.java:221)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.google.appinventor.components.runtime.EventDispatcher.dispatchEvent(EventDispatcher.java:198)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.kumaraswamy.wificall.WiFiCalling.MessageReceived(WiFiCalling.java:106)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.kumaraswamy.wificall.WiFiCalling.NewMessage(WiFiCalling.java:131)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at com.kumaraswamy.wificall.WIFIActivity$2.run(WIFIActivity.java:125)
02-13 17:08:57.467 22513 22724 E AndroidRuntime: at java.lang.Thread.run(Thread.java:764)
02-13 17:08:57.587 21438 21496 E PBSessionCacheImpl: sessionId[94286934337235672] not persisted.
02-13 17:08:57.587 3827 4008 E InputDispatcher: channel 'b416575 appinventor.ai_froniu84a.test23/appinventor.ai_froniu84a.test23.Screen1 (server)' ~ Channel is unrecoverably broken and will be disposed!
02-13 17:08:57.596 3303 5062 E NativeSemDvfsGpuManager: acquire:: Start
02-13 17:08:57.596 3303 5062 E NativeSemDvfsGpuManager: acquire:: timeout = 1000 mIsAcquired = 0 mTagName : SurfaceFlinger
02-13 17:08:57.598 3303 5062 E NativeCustomFrequencyManager: [NativeCFMS] BpCustomFrequencyManager::requestGPU()
02-13 17:08:57.598 3303 5062 E NativeSemDvfsGpuManager: acquire:: End
02-13 17:08:57.606 3827 5311 E WindowManager: win=Window{b416575 u0 appinventor.ai_froniu84a.test23/appinventor.ai_froniu84a.test23.Screen1 EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true win.mViewVisibility=0 caller=com.android.server.wm.AppWindowToken.destroySurfaces:870 com.android.server.wm.AppWindowToken.destroySurfaces:851 com.android.server.wm.WindowState.onExitAnimationDone:5443 com.android.server.wm.-$$Lambda$01bPtngJg5AqEoOWfW3rWfV7MH4.accept:2 java.util.ArrayList.forEach:1262 com.android.server.wm.AppWindowToken.onAnimationFinished:2403 com.android.server.wm.AppWindowToken.setVisibility:551