Unity 5.5
Vuforia 2.6.2
iPhone 7 Plus (using metal)
After updating to iOS 11 the app I am working no longer works. It will build and run for a few seconds before getting this error message:
Exception in callback: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: at UnityEngine.Behaviour.get_enabled () [0x00000] in <filename unknown>:0 at Vuforia.StateManagerImpl.UpdateTrackablePoses (UnityEngine.Transform arCameraTransform, .TrackableResultData[] trackableResultDataArray, .VuMarkTargetResultData[] vuMarkResultDataArray, TrackableIdPair originTrackableID, Int32 frameIndex) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaManagerImpl.UpdateTrackers (FrameState frameState) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaManagerImpl.Update (ScreenOrientation counterRotation, Boolean reapplyOldState) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaARController.UpdateStatePrivate (Boolean forceUpdate, Boolean reapplyOldState) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaARController.UpdateState (Boolean forceUpdate, Boolean reapplyOldState) [0x00000] in <filename unknown>:0 at Vuforia.DigitalEyewearARController.Update () [0x00000] in <filename unknown>:0 at System.Reflection.MonoMethod.InternalInvoke (System.Object obj, System.Object[] parameters, System.Exception& exc) [0x00000] in <filename unknown>:0 at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 at System.AppDomain.add_UnhandledException (System.UnhandledExceptionEventHandler value) [0x00000] in <filename unknown>:0 at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 at Vuforia.DelegateHelper.InvokeDelegate (System.Delegate action, System.Object[] args) [0x00000] in <filename unknown>:0 at Vuforia.DelegateHelper.InvokeWithExceptionHandling (System.Action action) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaAbstractBehaviour.Update () [0x00000] in <filename unknown>:0 --- End of inner exception stack trace --- at DTValidator.Internal.GameObjectExtensions+<GetChildren>c__Iterator0.System.Collections.Generic.IEnumerator<UnityEngine.GameObject>.get_Current () [0x00000] in <filename unknown>:0 at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 at System.AppDomain.add_UnhandledException (System.UnhandledExceptionEventHandler value) [0x00000] in <filename unknown>:0 at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0 at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0 at Vuforia.DelegateHelper.InvokeDelegate (System.Delegate action, System.Object[] args) [0x00000] in <filename unknown>:0 at Vuforia.DelegateHelper.InvokeWithExceptionHandling (System.Action action) [0x00000] in <filename unknown>:0 at Vuforia.VuforiaAbstractBehaviour.Update () [0x00000] in <filename unknown>:0 UnityEngine.DebugLogHandler:Internal_Log(LogType, String, Object) UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[]) UnityEngine.Debug:LogException(Exception) UnityEngine.Logger:Log(LogType, Object) System.Collections.ObjectModel.Collection`1:Remove(T) UnityEngine.Debug:LogError(Object) Vuforia.DelegateHelper:InvokeDelegate(Delegate, Object[]) Vuforia.DelegateHelper:InvokeWithExceptionHandling(Action) Vuforia.VuforiaAbstractBehaviour:Update()
I figured maybe this issue has something to do with the DTValidator.Internal.GameObjectExtensions+ line but even after deleting that plugin entirely (as it wasn't used in the app at all really) I got the same error but the lines after "--- End of inner exception stack trace ---" refereed to another script that hasn't been changed (using Google Analytics) since well before the iOS 11 update. Is anyone else having this issue and/or know of a way to fix this issue. This doesn't seem to be an issue with other iPhones as some colleuges can run the device on iOS 11 but on iPhone 6.