Bug: Cannot Read Properties of Undefined (reading 'Auth0Client')

[alex-wenner]

Checklist

• [X] The issue can be reproduced in the auth0_flutter sample app (or N/A).
• [X] I have looked into the Readme, Examples, and FAQ and have not found a suitable solution or answer.
• [X] I have looked into the API documentation and have not found a suitable solution or answer.
• [X] I have searched the issues and have not found a suitable solution or answer.
• [X] I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• [X] I agree to the terms within the Auth0 Code of Conduct.

Description

When using the sample application found here

Error

TypeError: Cannot read properties of undefined (reading 'Auth0Client')
packages/auth0_flutter/src/web/auth0_flutter_plugin_real.dart 30:25
initialize
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54       runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 123:5       _async 
packages/auth0_flutter/src/web/auth0_flutter_plugin_real.dart 27:26
initialize
packages/auth0_flutter/auth0_flutter_web.dart 55:44                      onLoad 
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54       runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 123:5       _async 
packages/auth0_flutter/auth0_flutter_web.dart 40:30                      onLoad 
packages/sample/main.dart 39:5
initState
packages/flutter/src/widgets/framework.dart 5219:55
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5062:5                       mount  
packages/flutter/src/widgets/framework.dart 3971:15
inflateWidget
packages/flutter/src/widgets/framework.dart 3708:18
updateChild
packages/flutter/src/widgets/framework.dart 5111:16
performRebuild
packages/flutter/src/widgets/framework.dart 4805:7                       rebuild
packages/flutter/src/widgets/framework.dart 5068:5
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5062:5                       mount  
packages/flutter/src/widgets/framework.dart 3971:15
inflateWidget
packages/flutter/src/widgets/framework.dart 3708:18
updateChild
packages/flutter/src/widgets/framework.dart 5111:16
performRebuild
packages/flutter/src/widgets/framework.dart 5251:11
performRebuild
packages/flutter/src/widgets/framework.dart 4805:7                       rebuild
packages/flutter/src/widgets/framework.dart 5068:5
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5242:11
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5062:5                       mount  
packages/flutter/src/widgets/framework.dart 3971:15
inflateWidget
packages/flutter/src/widgets/framework.dart 3708:18
updateChild
packages/flutter/src/widgets/framework.dart 5111:16
performRebuild
packages/flutter/src/widgets/framework.dart 4805:7                       rebuild
packages/flutter/src/widgets/framework.dart 5068:5
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5062:5                       mount  
packages/flutter/src/widgets/framework.dart 3971:15
inflateWidget
packages/flutter/src/widgets/framework.dart 3708:18
updateChild
packages/flutter/src/widgets/framework.dart 5111:16
performRebuild
packages/flutter/src/widgets/framework.dart 4805:7                       rebuild
packages/flutter/src/widgets/framework.dart 5068:5
[_firstBuild]
packages/flutter/src/widgets/framework.dart 5062:5                       mount  
packages/flutter/src/widgets/framework.dart 3971:15
inflateWidget
packages/flutter/src/widgets/framework.dart 3708:18
updateChild
packages/flutter/src/widgets/binding.dart 1240:16
[_rebuild]
packages/flutter/src/widgets/binding.dart 1209:5                         mount  
packages/flutter/src/widgets/binding.dart 1156:16                        <fn>   
packages/flutter/src/widgets/framework.dart 2720:19
buildScope
packages/flutter/src/widgets/binding.dart 1155:12
attachToRenderTree
packages/flutter/src/widgets/binding.dart 987:24
attachRootWidget
packages/flutter/src/widgets/binding.dart 968:7                          <fn>   
dart-sdk/lib/_internal/js_dev_runtime/private/isolate_helper.dart 48:19
internalCallback
Invalid argument(s): Auth0Client has not been initialized

Version

Pkg: auth0_flutter: 1.2.1

Flutter 3.10.5 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 796c8ef792 (4 weeks ago) • 2023-06-13 15:51:02 -0700       
Engine • revision 45f6e00911
Tools • Dart 3.0.5 • DevTools 2.23.1

Tried

• Confirmed that my version running is latest.
• Confirmed that .env vars are set and accessible in code.
• Browsed samples, issues, docs

Reproduction

1. Ran flutter create frontend
2. Copied Files from Sample
3. Error Occured

Additional context

No response

auth0_flutter version

1.2.1

Flutter version

3.10.5

Platform

Web

Platform version(s)

Using Edge Emulator on Windows 11

[alex-wenner]

Completely missed this line somehow in the index.html

  <script src="https://cdn.auth0.com/js/auth0-spa-js/2.0/auth0-spa-js.production.js" defer></script>

Sorry about that!