'NSInternalInconsistencyException', reason: 'You must override the `supportedEvents` method of WEGN_RNFirebaseNotifications'

[john1jan]

'NSInternalInconsistencyException', reason: 'You must override the supportedEvents method of WEGN_RNFirebaseNotifications'

Got this error when running on ios

[uzma-sayyed]

@john1jan can you please provide more information on what action you are getting this error and how to reproduce it?

[Rajat421]

@uzma-sayyed I am getting this error at runtime whenever I add WEGLicensecode in Info-plist.

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'You must override the supportedEvents method of WEGN_RNFirebaseNotifications'
*** First throw call stack:
(
0 CoreFoundation 0x000000010bab81e6 _exceptionPreprocess + 294
1 libobjc.A.dylib 0x000000010a43e031 objc_exception_throw + 48
2 CoreFoundation 0x000000010babd472 +[NSException raise:format:arguments:] + 98
3 Foundation 0x000000010588864f -[NSAssertionHandler handleFailureInFunction:file:lineNumber:description:] + 165
4 GrowwStage 0x0000000102d75455 +[RCTEventEmitter initialize] + 325
5 libobjc.A.dylib 0x000000010a43eb04 CALLING_SOME+initialize_METHOD + 19
6 libobjc.A.dylib 0x000000010a43ee9e _class_initialize + 276
7 libobjc.A.dylib 0x000000010a43c2f3 object_setClass + 90
8 WebEngage 0x000000010929d38e +[WEGDelegateProxy dynamicallySubclassAppDelegate:forProtocol:] + 2926
9 WebEngage 0x0000000109261fbe -[WebEngage swizzleUserNotificationCenterDelegate:] + 286
10 WebEngage 0x0000000109261e11 -[WebEngage observeValueForKeyPath:ofObject:change:context:] + 641
11 Foundation 0x00000001057c4820 NSKeyValueNotifyObserver + 349
12 Foundation 0x00000001057c40d7 NSKeyValueDidChange + 483
13 Foundation 0x00000001058a522b -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:usingBlock:] + 778
14 Foundation 0x00000001057911b4 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 61
15 Foundation 0x00000001057edb79 _NSSetObjectValueAndNotify + 255
16 GrowwStage 0x00000001031a14f6 -[RNFirebaseNotifications initialise] + 118
17 GrowwStage 0x00000001031a1450 -[RNFirebaseNotifications init] + 128
18 GrowwStage 0x0000000102dac894 __44-[RCTModuleData initWithModuleClass:bridge:]_block_invoke + 36
19 GrowwStage 0x0000000102dad3c2 -[RCTModuleData setUpInstanceAndBridge] + 1762
20 GrowwStage 0x0000000102daf0c6 __25-[RCTModuleData instance]_block_invoke + 38
21 GrowwStage 0x0000000102de3463 RCTUnsafeExecuteOnMainQueueSync + 67
22 GrowwStage 0x0000000102daedd2 -[RCTModuleData instance] + 754
23 GrowwStage 0x0000000102cfa838 __49-[RCTCxxBridge _prepareModulesWithDispatchGroup:]_block_invoke + 200
24 libdispatch.dylib 0x000000010d02c7ab _dispatch_call_block_and_release + 12
25 libdispatch.dylib 0x000000010d02d7ec _dispatch_client_callout + 8
26 libdispatch.dylib 0x000000010d038a3c _dispatch_main_queue_callback_4CF + 993
27 CoreFoundation 0x000000010ba7ac99 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 9
28 CoreFoundation 0x000000010ba3eea6 __CFRunLoopRun + 2342
29 CoreFoundation 0x000000010ba3e30b CFRunLoopRunSpecific + 635
30 GraphicsServices 0x000000010f516a73 GSEventRunModal + 62
31 UIKit 0x0000000107094057 UIApplicationMain + 159
32 GrowwStage 0x000000010285d79f main + 111
33 libdyld.dylib 0x000000010d0aa955 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

[uzma-sayyed]

@Rajat421 there seems to be an issue with method swizzling by Firebase. A similar issue was fixed by them in their recent commit, specifically ced3f44.
Can you try by replacing Firebase's Messaging folder with the above code?

[Rajat421]

@uzma-sayyed thanks, I have tried this but nothing changed still getting the same error

[sercanov]

I also getting same error in Debug mode. Release mode works fine

[uzma-sayyed]

Can you please try solutions given in this thread?

[sercanov]

@uzma-sayyed the solutions in that thread suggests editing the module, I could try that by forking your repository but it wouldn't it be better you to update it ?

Edit: By the way WEGWebEngageBridge.m already have supportedEvents method which was the suggested solutions of the tread, i think the problem is something else. I'll be looking into it

[saumitrabhave]

I have created facebook/react-native#20687 in React native , In the meantime (To temporarily fix crash) you can define NS_BLOCK_ASSERTIONS flag in Preprocessor Macros. You can do so by going to Build Target -> Build Settings -> Preprocessor Macros (Define for Debug).

Hope this helps.

[sercanov]

Any updates ? It is still crashing on debug mode, I have to comment out WebEngage initialize code every time

[saumitrabhave]

Hi @sercanov , Did you try the workaround shared in in comment above? Does it solve the issue for you in debug mode

[sercanov]

Hey @saumitrabhave
I added NS_BLOCK_ASSERTIONS=1 to Preprocessor Macros but it is still crashing

018-10-05 11:47:19.660073+0300 ] - [7446:1636090] -[WEGConfig initWithLuid:andCuid:] [Line 74] ERROR: Could Not create dataHolderContext Error Domain=NSCocoaErrorDomain Code=3840 "Cannot parse a NULL or zero-length data" UserInfo={NSDebugDescription=Cannot parse a NULL or zero-length data}
2018-10-05 11:47:19.668033+0300 - [7446:1636090] *** Assertion failure in +[RCTEventEmitter initialize](), /Users/sercanov/Projects/rider/node_modules/react-native/React/Modules/RCTEventEmitter.m:27
2018-10-05 11:47:19.669167+0300 - [7446:1636090] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'You must override the `supportedEvents` method of WEGN_RNFirebaseNotifications'

[rajatbeck]

Facing the same issue , i have tried all the above mentioned solutions no success ,as this ticket is still open have you guys come up with any other solution?

[saumitrabhave]

Hi, There is an open issue at facebook/react-native#21333 , I don't think we can do much here. Did you try adding the flag as Preprocessor Macro for eg. https://stackoverflow.com/questions/30080466/disable-assertions-while-testing