Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain - Help!

[mprogers]

I searched stackoverflow.com, etc., with no luck. The only thing that I know about Android development is that if I see the word "Gradle", it's not going to be a good morning. Any help would be appreciated.

Note that I can create a new project and it runs fine.

Steps to Reproduce

1. I downloaded a student's flutter project
2. I cleaned the project
3. I attempted to run it and got this error:

Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
Caused by: java.lang.ClassNotFoundException: org.gradle.wrapper.GradleWrapperMain
Exception: Gradle task assembleDebug failed with exit code 1

Logs

Logs

flutter run
Multiple devices found:
...
[1]: sdk gphone64 arm64 (emulator-5554)
[2]: sdk gphone64 arm64 (emulator-5556)
[3]: iPhone 14 Pro Max 
[4]: macOS (macos)
[5]: Chrome (chrome)
Please choose one (To quit, press "q/Q"): 1
Using hardware rendering with device sdk gphone64 arm64. If you notice graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
Launching lib/main.dart on sdk gphone64 arm64 in debug mode...
Building with Flutter multidex support enabled.
Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
Caused by: java.lang.ClassNotFoundException: org.gradle.wrapper.GradleWrapperMain
Running Gradle task 'assembleDebug'...                             699ms
Exception: Gradle task assembleDebug failed with exit code 1

[✓] Flutter (Channel stable, 3.3.9, on macOS 13.0.1 22A400 darwin-arm, locale en-US)
    • Flutter version 3.3.9 on channel stable at /Applications/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision b8f7f1f986 (3 days ago), 2022-11-23 06:43:51 +0900
    • Engine revision 8f2221fbef
    • Dart version 2.18.5
    • DevTools version 2.15.0

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
    • Android SDK at /Users/mprogers/Library/Android/sdk
    • Platform android-33, build-tools 33.0.0
    • 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 14.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14B47b
    • 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 1.73.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.52.0

[✓] Connected device (5 available)
    • sdk gphone64 arm64 (mobile) • emulator-5554                        • android-arm64  • Android 13 (API 33) (emulator)
    • sdk gphone64 arm64 (mobile) • emulator-5556                        • android-arm64  • Android 13 (API 33) (emulator)
    • iPhone 14 Pro Max (mobile)  • FB304F21-DA39-47D4-9B60-B99D485C8B86 • ios            • com.apple.CoreSimulator.SimRuntime.iOS-16-1 (simulator)
    • macOS (desktop)             • macos                                • darwin-arm64   • macOS 13.0.1 22A400 darwin-arm
    • Chrome (web)                • chrome                               • web-javascript • Google Chrome 107.0.5304.121

[✓] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

[mprogers]

I found that GradleWrapperMain was being called in gradlew, a bash script. I echoed the $CLASSPATH in my working project and my students', and compared them. Part of the assignment name was 1/3 complete, and, needless to say, that slash did not go down well.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.