Building web without null safety fails in 3.3.0 #109160
Description
Steps to Reproduce
- Create a flutter application without any null safe code and set the sdk constraints as
sdk: ">=2.11.0 <3.0.0"to disable null safety features - Using Flutter 3.3.0 from the beta channel, run
flutter build web --release - The build should fail
Logs
Of special note below is use of an optional on Registrar in the web_plugin_registrant which causes an error since the requested Dart version doesn't support it. I believe this change was made in the following commit: 1af8cc1
Logs
Building without sound null safety
For more information see https://dart.dev/null-safety/unsound-null-safety
Compiling lib/main.dart for the Web...
Target dart2js failed: Exception: Warning: The 'dart2js' entrypoint script is deprecated, please use 'dart compile js' instead.
.dart_tool/flutter_build/572d7750549a8327067a38f83ec01c02/web_plugin_registrant.dart:31:38:
Error: Null safety features are disabled for this library.
void registerPlugins([final Registrar? pluginRegistrar]) {
^
Error: Compilation failed.
Compiling lib/main.dart for the Web... 29.4s
Exception: Failed to compile application for the Web.
Build failed :|
Failed to build for Web
[✓] Flutter (Channel beta, 3.3.0-0.2.pre, on macOS 12.4 21F79 darwin-arm, locale en-CA)
• Flutter version 3.3.0-0.2.pre on channel beta at /Users/matthewpatience/fluttersdk
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 7ac27ac8e6 (6 days ago), 2022-08-02 14:35:08 -0700
• Engine revision d1e7dc18bf
• Dart version 2.18.0 (build 2.18.0-271.4.beta)
• DevTools version 2.15.0
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0-rc1)
• Android SDK at /Users/matthewpatience/Library/Android/sdk
• Platform android-33, build-tools 33.0.0-rc1
• Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.12+0-b1504.28-7817840)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 13.4.1)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 13F100
• CocoaPods version 1.11.3
[✓] Chrome - develop for the web
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2021.2)
• Android Studio at /Applications/Android Studio.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.12+0-b1504.28-7817840)
[✓] VS Code (version 1.69.0)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (2 available)
• macOS (desktop) • macos • darwin-arm64 • macOS 12.4 21F79 darwin-arm
• Chrome (web) • chrome • web-javascript • Google Chrome 103.0.5060.134
[✓] HTTP Host Availability
• All required HTTP hosts are available
• No issues found!
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High-priority issues at the top of the work listBuilding flutter applications with the toolStack traces logged to the consoleFound to occur in 3.1Found to occur in 3.3The issue has been confirmed reproducible and is ready to work onWeb applications specificallyIssue is closed as already fixed in a newer versionAffects the "flutter" command-line tool. See also t: labels.