Unity SDK, iOS build. "Cannot change the appIdentifier" error

[artem-shmatkov]

Hi guys!

I have a problem with Unity SDK when launching XCode project:

InvalidOperationException: Cannot change the `appIdentifier` property of a `_Installation` object.
  at Parse.ParseObject.CheckKeyIsMutable (System.String key) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.Remove (System.String key) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.SetIfDifferent[String] (System.String key, System.String value) [0x00000] in <filename unknown>:0 
  at Parse.ParseInstallation.SaveAsync (System.Threading.Tasks.Task toAwait, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject+<>c__DisplayClass3a.<SaveAsync>b__39 (System.Threading.Tasks.Task toAwait) [0x00000] in <filename unknown>:0 
  at Parse.Internal.TaskQueue.Enqueue[Task] (System.Func`2 taskStart, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.SaveAsync (CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.SaveAsync () [0x00000] in <filename unknown>:0 
  at Parse.ParseInitializeBehaviour.<Awake>b__0 (System.Byte[] deviceToken) [0x00000] in <filename unknown>:0 
  at Parse.PlatformHooks+<>c__DisplayClass28.<RegisterDeviceTokenRequest>b__26 () [0x00000] in <filename unknown>:0 
  at Parse.PlatformHooks+<RunDispatcher>d__2e.MoveNext () [0x00000] in <filename unknown>:0 

It's not a fatal error - app still working but I think it shouldn't be there.
All that I doing is:

UnityEngine.iOS.NotificationServices.RegisterForNotifications(UnityEngine.iOS.NotificationType.Alert |
                                                                UnityEngine.iOS.NotificationType.Badge |
                                                                UnityEngine.iOS.NotificationType.Sound);

[richardjrossiii]

Thanks for the report. This is a valid bug, working on a PR now.

[hahdouken]

Hi, I'm getting a similar error:

InvalidOperationException: Cannot change the `appVersion` property of a `_Installation` object.
  at Parse.Internal.MissingExtensions+<>c__DisplayClass1..ctor () [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.CheckKeyIsMutable (System.String key) [0x00000] in <filename unknown>:0 
  at Parse.ParseObject.Remove (System.String key) [0x00000] in <filename unknown>:0 
  at Parse.ParseInstallation.SetIfDifferent[T] (System.String key, .T value) [0x00000] in <filename unknown>:0 
  at Parse.ParseInstallation.SetAutomaticValues () [0x00000] in <filename unknown>:0 
  at Parse.ParseInstallation.SaveAsync (System.Threading.Tasks.Task toAwait, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at Parse.Internal.TaskQueue.Enqueue[T] (System.Func`2 taskStart, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at Parse.PlatformHooks+<>c__DisplayClass24.<RegisterDeviceTokenRequest>b__22 () [0x00000] in <filename unknown>:0 
  at Parse.PlatformHooks+<RunDispatcher>d__44.MoveNext () [0x00000] in <filename unknown>:0

For me, this problem started after I switched from Mono2x to IL2CPP in Unity. Is there a quick fix for this, or should we wait for the next Parse Unity sdk?

[richardjrossiii]

@hahdouken Unfortunately, the reason you're seeing that is because IL2CPP sends back a 'null' string for appVersion, whereas mono does not. Once #41 is landed, it will be taken care of, but, unless you wish to build the SDK yourself, you will have to wait until the next release.

Note that this is only an issue when converting from an existing application in mono to IL2CPP, if you were to wipe your application's data, it should work fine again, so if you've never released, this crash would never happen in the wild.

[hahdouken]

@richardjrossiii Thanks! that helped me a lot