Flutter 2.5.0 registerWxApi 报错

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Error:

[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: Null check operator used on a null value
E/flutter (28621): #0 MethodChannel.binaryMessenger (package:flutter/src/services/platform_channel.dart:121:86)
E/flutter (28621): #1 MethodChannel.setMethodCallHandler (package:flutter/src/services/platform_channel.dart:375:5)
E/flutter (28621): #2 _channel (package:fluwx/src/fluwx_iml.dart:39:5)
E/flutter (28621): #3 _channel (package:fluwx/src/fluwx_iml.dart)
E/flutter (28621): #4 registerWxApi (package:fluwx/src/fluwx_iml.dart:77:16)
E/flutter (28621): #5 InitAppInfo._registerWx (package:xiaokai_danci/init_app_info.dart:21:5)
E/flutter (28621): #6 InitAppInfo.init (package:xiaokai_danci/init_app_info.dart:9:5)
E/flutter (28621): #7 main (package:xiaokai_danci/main.dart:11:21)
E/flutter (28621): #8 _runMainZoned.. (dart:ui/hooks.dart:145:25)
E/flutter (28621): #9 _rootRun (dart:async/zone.dart:1428:13)
E/flutter (28621): #10 _CustomZone.run (dart:async/zone.dart:1328:19)
E/flutter (28621): #11 _runZoned (dart:async/zone.dart:1863:10)
E/flutter (28621): #12 runZonedGuarded (dart:async/zone.dart:1851:12)
E/flutter (28621): #13 _runMainZoned. (dart:ui/hooks.dart:141:5)
E/flutter (28621): #14 _delayEntrypointInvocation. (dart:isolate-patch/isolate_patch.dart:283:19)
E/flutter (28621): #15 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:184:12)

[JarvanMo]

universalLink 没传？

我切回2.2.3试试，怀疑是2.5.0的bug

执行registerWxApi，未 WidgetsFlutterBinding.ensureInitialized();

[sj1910]

Unhandled Exception: Null check operator used on a null value
你好,这个问题怎么解决的?

[liwangyong]

Unhandled Exception: Null check operator used on a null value 你好，这个问题怎么解决的？

你解决了吗