I recently tried to build a web version of my flutter app. It is my first time doing so. After many challenges and errors, all solved with various stack posts, this is the current error I am facing:
Error: ══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞══════════════════════
The following UnimplementedError was thrown during a scheduler
callback:
UnimplementedError
When the exception was thrown, this was the stack:
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 216:49 throw_
C:/b/s/w/ir/cache/builder/src/out/host_debug/flutter_web_sdk/lib/_engine/engine/html/scene_builder.dart 231:5 pushShaderMask
packages/flutter/src/rendering/layer.dart 1812:26 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1013:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1999:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1609:5 addToScene
packages/flutter/src/rendering/layer.dart 765:5 buildScene
packages/flutter/src/rendering/view.dart 231:30 compositeFrame
packages/flutter/src/rendering/binding.dart 458:18 drawFrame
packages/flutter/src/widgets/binding.dart 895:13 drawFrame
packages/flutter/src/rendering/binding.dart 320:5 [_handlePersistentFrameCallback]
packages/flutter/src/scheduler/binding.dart 1117:15 [_invokeFrameCallback]
packages/flutter/src/scheduler/binding.dart 1055:9 handleDrawFrame
packages/flutter/src/scheduler/binding.dart 864:7 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1182:47 _rootRun
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1093:19 run
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 997:7 runGuarded
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1037:23 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1190:13 _rootRun
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1093:19 run
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1021:23 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/isolate_helper.dart 48:19 internalCallback
═════════════════════════════════════════════════════════════════
at Object.throw_ [as throw] (http://localhost:11342/dart_sdk.js:4348:11)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318203:21
at Generator.next (<anonymous>)
at runBody (http://localhost:11342/dart_sdk.js:37976:34)
at Object._async [as async] (http://localhost:11342/dart_sdk.js:38007:7)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318201:66
at Function.reportError (http://localhost:11342/packages/flutter/src/foundation/debug.dart.lib.js:3696:56)
at binding$5.WidgetsFlutterBinding.new.[_invokeFrameCallback] (http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:771:35)
at binding$5.WidgetsFlutterBinding.new.handleDrawFrame (http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:734:37)
at http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:648:14
at _rootRun (http://localhost:11342/dart_sdk.js:38250:45)
at async._CustomZone.new.run (http://localhost:11342/dart_sdk.js:37426:14)
at async._CustomZone.new.runGuarded (http://localhost:11342/dart_sdk.js:37326:14)
at http://localhost:11342/dart_sdk.js:37380:33
at _rootRun (http://localhost:11342/dart_sdk.js:38256:14)
at async._CustomZone.new.run (http://localhost:11342/dart_sdk.js:37426:14)
at http://localhost:11342/dart_sdk.js:37365:33
at internalCallback (http://localhost:11342/dart_sdk.js:24100:11)
Error: ══╡ EXCEPTION CAUGHT BY SERVICES LIBRARY ╞═══════════════════════
The following MissingPluginException was thrown while activating
platform stream on channel uni_links/events:
MissingPluginException(No implementation found for method listen
on channel uni_links/events)
When the exception was thrown, this was the stack:
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 216:49 throw_
packages/flutter/src/services/platform_channel.dart 157:7 _invokeMethod
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 45:50 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1198:47 _rootRunUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1100:19 runUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 143:18 handleValue
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 696:44 handleValueCallback
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 725:32 _propagateToListeners
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 529:5 [_completeWithValue]
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 567:7 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1190:13 _rootRun
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1093:19 run
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1021:23 callback
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 41:11 _microtaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/schedule_microtask.dart 50:5 _startMicrotaskLoop
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 166:15 <fn>
═════════════════════════════════════════════════════════════════
at Object.throw_ [as throw] (http://localhost:11342/dart_sdk.js:4348:11)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318203:21
at Generator.next (<anonymous>)
at runBody (http://localhost:11342/dart_sdk.js:37976:34)
at Object._async [as async] (http://localhost:11342/dart_sdk.js:38007:7)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318201:66
at Function.reportError (http://localhost:11342/packages/flutter/src/foundation/debug.dart.lib.js:3696:56)
at EventChannel.<anonymous> (http://localhost:11342/packages/flutter/src/services/system_channels.dart.lib.js:1153:39)
at Generator.throw (<anonymous>)
at http://localhost:11342/dart_sdk.js:37962:38
at _rootRunBinary (http://localhost:11342/dart_sdk.js:38278:45)
at async._CustomZone.new.runBinary (http://localhost:11342/dart_sdk.js:37440:14)
at _FutureListener.thenAwait.handleError (http://localhost:11342/dart_sdk.js:32783:48)
at handleError (http://localhost:11342/dart_sdk.js:33335:51)
at Function._propagateToListeners (http://localhost:11342/dart_sdk.js:33361:17)
at _Future.new.[_completeWithValue] (http://localhost:11342/dart_sdk.js:33199:23)
at http://localhost:11342/dart_sdk.js:33222:35
at _rootRun (http://localhost:11342/dart_sdk.js:38256:14)
at async._CustomZone.new.run (http://localhost:11342/dart_sdk.js:37426:14)
at async._AsyncCallbackEntry.new.callback (http://localhost:11342/dart_sdk.js:37365:33)
at Object._microtaskLoop (http://localhost:11342/dart_sdk.js:38071:13)
at _startMicrotaskLoop (http://localhost:11342/dart_sdk.js:38077:13)
at http://localhost:11342/dart_sdk.js:33574:9
Error: Unsupported operation: Platform._operatingSystem
at Object.throw_ [as throw] (http://localhost:11342/dart_sdk.js:4348:11)
at Function._operatingSystem (http://localhost:11342/dart_sdk.js:54995:17)
at Function.get operatingSystem [as operatingSystem] (http://localhost:11342/dart_sdk.js:55041:27)
at get _operatingSystem (http://localhost:11342/dart_sdk.js:54954:27)
at Function.desc.get [as _operatingSystem] (http://localhost:11342/dart_sdk.js:4842:17)
at get isIOS (http://localhost:11342/dart_sdk.js:54978:26)
at Function.desc.get [as isIOS] (http://localhost:11342/dart_sdk.js:4842:17)
at flutter_secure_storage.FlutterSecureStorage.new.[_selectOptions] (http://localhost:11342/packages/flutter_secure_storage/flutter_secure_storage.dart.lib.js:133:36)
at flutter_secure_storage.FlutterSecureStorage.new.delete (http://localhost:11342/packages/flutter_secure_storage/flutter_secure_storage.dart.lib.js:116:187)
at storage._SecureStore.new.remove (http://localhost:11342/packages/Okuna/services/storage.dart.lib.js:161:33)
at storage.OBStorage.new.remove (http://localhost:11342/packages/Okuna/services/storage.dart.lib.js:86:25)
at user$0.UserService.new._removeStoredUserData (http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:311436:28)
at _removeStoredUserData.next (<anonymous>)
at runBody (http://localhost:11342/dart_sdk.js:37976:34)
at Object._async [as async] (http://localhost:11342/dart_sdk.js:38007:7)
at user$0.UserService.new.[_removeStoredUserData] (http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:311435:20)
at user$0.UserService.new.logout (http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:309104:44)
at logout.throw (<anonymous>)
at http://localhost:11342/dart_sdk.js:37962:38
at _rootRunBinary (http://localhost:11342/dart_sdk.js:38278:45)
at async._CustomZone.new.runBinary (http://localhost:11342/dart_sdk.js:37440:14)
at _FutureListener.thenAwait.handleError (http://localhost:11342/dart_sdk.js:32783:48)
at handleError (http://localhost:11342/dart_sdk.js:33335:51)
at Function._propagateToListeners (http://localhost:11342/dart_sdk.js:33361:17)
at _Future.new.[_completeWithValue] (http://localhost:11342/dart_sdk.js:33199:23)
at http://localhost:11342/dart_sdk.js:33222:35
at _rootRun (http://localhost:11342/dart_sdk.js:38256:14)
at async._CustomZone.new.run (http://localhost:11342/dart_sdk.js:37426:14)
at async._AsyncCallbackEntry.new.callback (http://localhost:11342/dart_sdk.js:37365:33)
at Object._microtaskLoop (http://localhost:11342/dart_sdk.js:38071:13)
at _startMicrotaskLoop (http://localhost:11342/dart_sdk.js:38077:13)
at http://localhost:11342/dart_sdk.js:33574:9
Error: ══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞══════════════════════
The following UnimplementedError was thrown during a scheduler
callback:
UnimplementedError
When the exception was thrown, this was the stack:
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 216:49 throw_
C:/b/s/w/ir/cache/builder/src/out/host_debug/flutter_web_sdk/lib/_engine/engine/html/scene_builder.dart 231:5 pushShaderMask
packages/flutter/src/rendering/layer.dart 1812:26 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1013:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1999:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1164:5 addToScene
packages/flutter/src/rendering/layer.dart 440:5 [_addToSceneWithRetainedRendering]
packages/flutter/src/rendering/layer.dart 1027:14 addChildrenToScene
packages/flutter/src/rendering/layer.dart 1609:5 addToScene
packages/flutter/src/rendering/layer.dart 765:5 buildScene
packages/flutter/src/rendering/view.dart 231:30 compositeFrame
packages/flutter/src/rendering/binding.dart 458:18 drawFrame
packages/flutter/src/widgets/binding.dart 895:13 drawFrame
packages/flutter/src/rendering/binding.dart 320:5 [_handlePersistentFrameCallback]
packages/flutter/src/scheduler/binding.dart 1117:15 [_invokeFrameCallback]
packages/flutter/src/scheduler/binding.dart 1055:9 handleDrawFrame
packages/flutter/src/scheduler/binding.dart 971:5 [_handleDrawFrame]
C:/b/s/w/ir/cache/builder/src/out/host_debug/flutter_web_sdk/lib/_engine/engine/platform_dispatcher.dart 892:13 invoke
C:/b/s/w/ir/cache/builder/src/out/host_debug/flutter_web_sdk/lib/_engine/engine/platform_dispatcher.dart 145:5 invokeOnDrawFrame
C:/b/s/w/ir/cache/builder/src/out/host_debug/flutter_web_sdk/lib/_engine/engine.dart 240:45 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1206:13 _rootRunUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1100:19 runUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1005:7 runUnaryGuarded
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1042:26 <fn>
═════════════════════════════════════════════════════════════════
at Object.throw_ [as throw] (http://localhost:11342/dart_sdk.js:4348:11)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318203:21
at Generator.next (<anonymous>)
at runBody (http://localhost:11342/dart_sdk.js:37976:34)
at Object._async [as async] (http://localhost:11342/dart_sdk.js:38007:7)
at http://localhost:11342/packages/Okuna/pages/auth/create_account/name_step.dart.lib.js:318201:66
at Function.reportError (http://localhost:11342/packages/flutter/src/foundation/debug.dart.lib.js:3696:56)
at binding$5.WidgetsFlutterBinding.new.[_invokeFrameCallback] (http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:771:35)
at binding$5.WidgetsFlutterBinding.new.handleDrawFrame (http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:734:37)
at binding$5.WidgetsFlutterBinding.new.[_handleDrawFrame] (http://localhost:11342/packages/flutter/src/scheduler/binding.dart.lib.js:689:12)
at Object.invoke (http://localhost:11342/dart_sdk.js:178014:7)
at _engine.EnginePlatformDispatcher.__.invokeOnDrawFrame (http://localhost:11342/dart_sdk.js:160786:15)
at http://localhost:11342/dart_sdk.js:175633:55
at _rootRunUnary (http://localhost:11342/dart_sdk.js:38270:14)
at async._CustomZone.new.runUnary (http://localhost:11342/dart_sdk.js:37433:14)
at async._CustomZone.new.runUnaryGuarded (http://localhost:11342/dart_sdk.js:37339:14)
at http://localhost:11342/dart_sdk.js:37385:34
Error: MissingPluginException(No implementation found for method findProxy on channel social.okuna/proxy_settings)
at Object.throw_ [as throw] (http://localhost:11342/dart_sdk.js:4348:11)
at MethodChannel._invokeMethod (http://localhost:11342/packages/flutter/src/services/system_channels.dart.lib.js:943:21)
at _invokeMethod.next (<anonymous>)
at http://localhost:11342/dart_sdk.js:37956:33
at _rootRunUnary (http://localhost:11342/dart_sdk.js:38264:45)
at async._CustomZone.new.runUnary (http://localhost:11342/dart_sdk.js:37433:14)
at _FutureListener.thenAwait.handleValue (http://localhost:11342/dart_sdk.js:32771:29)
at handleValueCallback (http://localhost:11342/dart_sdk.js:33319:49)
at Function._propagateToListeners (http://localhost:11342/dart_sdk.js:33357:17)
at _Future.new.[_completeWithValue] (http://localhost:11342/dart_sdk.js:33199:23)
at http://localhost:11342/dart_sdk.js:33222:35
at _rootRun (http://localhost:11342/dart_sdk.js:38256:14)
at async._CustomZone.new.run (http://localhost:11342/dart_sdk.js:37426:14)
at async._AsyncCallbackEntry.new.callback (http://localhost:11342/dart_sdk.js:37365:33)
at Object._microtaskLoop (http://localhost:11342/dart_sdk.js:38071:13)
at _startMicrotaskLoop (http://localhost:11342/dart_sdk.js:38077:13)
at http://localhost:11342/dart_sdk.js:33574:9
I have no idea if these are related errors or 4-5 different errors. I can't seem to find the source of where the error is occuring, in which file in my project. Is there a good way to track the error ?
I seem to have taken all the steps for setting up flutter web. Tried both beta and dev channel.