CODEWITHSUNDEEP
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Reputation: 712

There are no issues with iOS, but when building for the Android emulator, an error occurs

I want to build my Flutter app in debug mode for the Android emulator, but I'm encountering an error. (I have included the error message below.) However, I have no issues building it in debug mode for the iOS emulator.

How can I resolve this problem?

Here is the error message.

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
   > Could not create task ':app:generateDebugLintModel'.
      > java.lang.NullPointerException (no error message)

I will provide the error message below, which occurred when executing 'flutter run --verbose' command. (Since it is a long text, I will only include the top part.)

'/Users/user/.pub-cache/hosted/pub.dev/webview_flutter_android-3.7.1/android/build.gradle'.
[        ] All projects evaluated.
[        ] Task name matched 'assembleDebug'
[        ] Selected primary task 'assembleDebug' from project :
[        ] FAILURE: Build failed with an exception.
[   +1 ms] * What went wrong:
[        ] Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
[        ] > Could not resolve all dependencies for configuration ':app:debugCompileClasspath'.
[        ]    > Could not create task ':app:generateDebugLintModel'.
[        ]       > java.lang.NullPointerException (no error message)
[        ] * Try:
[        ] > Run with --debug option to get more log output.
[        ] > Run with --scan to get full insights.
[        ] * Exception is:
[        ] org.gradle.api.internal.tasks.TaskDependencyResolveException: Could not determine the
dependencies of task ':app:compileDebugJavaWithJavac'.

[✓] Flutter (Channel stable, 3.10.3, on macOS 13.3.1  darwin-arm64, locale ja-JP)
    • Flutter version 3.10.3 on channel stable at /Users/user/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision f92f44110e (4 days ago), 2023-06-01 18:17:33 -0500
    • Engine revision 2a3401c9bb
    • Dart version 3.0.3
    • DevTools version 2.23.1

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
    • Android SDK at /Users/user/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 11.0.13+0-b1751.21-8125866)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.3.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14E300c
    • CocoaPods version 1.12.1

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.3)
    • 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 11.0.13+0-b1751.21-8125866)

[✓] VS Code (version 1.73.0)
    • VS Code at /Users/user/Downloads/Visual Studio Code.app/Contents
    • Flutter extension version 3.60.0

[✓] Connected device (3 available)
    • sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64  • Android 12 (API 32) (emulator)
    • macOS (desktop)             • macos         • darwin-arm64   • macOS 13.3.1 darwin-arm64
    • Chrome (web)                • chrome        • web-javascript • Google Chrome 

[✓] Network resources
    • All expected network resources are available.

• No issues found!

I have tried executing commands such as 'flutter clean' and 'flutter pub cache repair,' but it did not resolve the issue. I also ran 'flutter pub outdated' and tried updating to the recommended versions as a temporary solution, but it did not make a difference.

Additional note: I have installed Java.

% brew install openjdk % sudo ln -sfn /opt/homebrew/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk % echo 'export PATH="/opt/homebrew/opt/openjdk/bin:$PATH"' >> ~/.zshrc % export CPPFLAGS="-I/opt/homebrew/opt/openjdk/include"

Upvotes: 0

Views: 294

Answers (1)

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Reputation: 712

As a solution to the issue, I was able to run it without any problems by removing the "background_fetch" package

Upvotes: 0

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