[Firebase Authentication] Get ERROR_OPERATION_NOT_ALLOWED instead of ERROR_ADMIN_RESTRICTED_OPERATION when anonymous authentication disabled

[lukaszciastko]

When I try to call FirebaseAuth.instance.signInAnonymously() with anonymous authentication disabled, I get the following error:

_Unhandled Exception: PlatformException(ERROR_ADMIN_RESTRICTED_OPERATION, This operation is restricted to administrators only., null)_

Moreover error stack trace is printed even if I try-catch the call:

E/flutter (25895): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: PlatformException(ERROR_ADMIN_RESTRICTED_OPERATION, This operation is restricted to administrators only., null)
E/flutter (25895): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:569:7)
E/flutter (25895): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:159:18)
E/flutter (25895): <asynchronous suspension>
E/flutter (25895): #2      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:332:12)
E/flutter (25895): #3      MethodChannel.invokeMapMethod (package:flutter/src/services/platform_channel.dart:359:48)
E/flutter (25895): #4      MethodChannelFirebaseAuth.signInAnonymously (package:firebase_auth_platform_interface/src/method_channel_firebase_auth.dart:52:10)
E/flutter (25895): #5      FirebaseAuth.signInAnonymously (package:firebase_auth/src/firebase_auth.dart:42:45)
E/flutter (25895): #6      _AppViewState.build.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:blitaporder/main.dart:75:47)
E/flutter (25895): #7      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:953:19)
E/flutter (25895): #8      _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:1059:38)
E/flutter (25895): #9      GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
E/flutter (25895): #10     TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:522:11)
E/flutter (25895): #11     BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:282:5)
E/flutter (25895): #12     BaseTapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:217:7)
E/flutter (25895): #13     PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:475:9)
E/flutter (25895): #14     PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:76:12)
E/flutter (25895): #15     PointerRouter._dispatchEventToRoutes.<anonymous closure> (package:flutter/src/gestures/pointer_router.dart:122:9)
E/flutter (25895): #16     _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:377:8)
E/flutter (25895): #17     PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:120:18)
E/flutter (25895): #18     PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:106:7)
E/flutter (25895): #19     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:218:19)
E/flutter (25895): #20     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:198:22)
E/flutter (25895): #21     GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:156:7)
E/flutter (25895): #22     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:102:7)
E/flutter (25895): #23     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:86:7)
E/flutter (25895): #24     _rootRunUnary (dart:async/zone.dart:1206:13)
E/flutter (25895): #25     _CustomZone.runUnary (dart:async/zone.dart:1100:19)
E/flutter (25895): #26     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1005:7)
E/flutter (25895): #27     _invoke1 (dart:ui/hooks.dart:281:10)
E/flutter (25895): #28     _dispatchPointerDataPacket (dart:ui/hooks.dart:190:5)

To Reproduce

Implement the following code, e.g. in an onPressed callback of a FlatButton:

try {
  FirebaseAuth.instance.signInAnonymously();
} catch (e) {
  print('Error: $e');
}

Expected behavior

According to the documentation, the error I should be getting in this case is: ERROR_OPERATION_NOT_ALLOWED.

No stack trace should be printed if the error is in a try-catch statement.

Additional context

I'm using:
firebase_auth: ^0.16.1

Flutter doctor

[✓] Flutter (Channel beta, 1.19.0-4.3.pre, on Mac OS X 10.15.5 19F101, locale en-GB)

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[✓] Connected device (3 available)

[Ehesp]

@lukaszciastko Please could you upgrade to the latest version of auth? This should now be fixed. Will close. Please let me know if you have any more issues.