flutter web compile fails 'Unable to find modules for some sources' #48481
Description
I have a small project I'm using to dev/test a widget.
I'm trying to use the flutter beta channel and run the project as a web app.
I've pushed the app to github so you can reproduce the problem:
https://github.com/bsutton/minicard
The app was compiling fine until I added the provider package to the pubspec.yaml.
I'm now receiving the following compile error:
Launching lib/main.dart on Chrome in debug mode...
Unable to find modules for some sources, this is usually the result of either a
bad import, a missing dependency in a package (or possibly a dev_dependency
needs to move to a real dependency), or a build failure (if importing a
generated file).
Please check the following imports:
`import 'package:provider/provider.dart';` from minicard|lib/widgets/mini_card.dart at 2:1
Failed after 76ms
Failed to build application for the Web.
Exited (sigterm)flutter doctor -v
[✓] Flutter (Channel beta, v1.12.13+hotfix.6, on Linux, locale en_AU.UTF-8)
• Flutter version 1.12.13+hotfix.6 at /home/bsutton/apps/flutter
• Framework revision 18cd7a3601 (4 weeks ago), 2019-12-11 06:35:39 -0800
• Engine revision 2994f7e1e6
• Dart version 2.7.0
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at /home/bsutton/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• Java binary at: /home/bsutton/apps/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
• All Android licenses accepted.
[✓] Chrome - develop for the web
• Chrome at google-chrome
[✓] Android Studio (version 3.5)
• Android Studio at /home/bsutton/apps/android-studio
• Flutter plugin version 40.2.2
• Dart plugin version 191.8423
• Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b49-5587405)
[✓] IntelliJ IDEA Community Edition (version 2018.3)
• IntelliJ at /home/bsutton/apps/intellij/idea-IC-183.5912.21
• Flutter plugin version 37.0.1
• Dart plugin version 183.6270
[✓] Connected device (2 available)
• Chrome • chrome • web-javascript • Google Chrome 79.0.3945.88
• Web Server • web-server • web-javascript • Flutter Tools
• No issues found!