Freshly created flutter app fails to compile for Android: Your project requires a newer version of the Kotlin Gradle plugin #171671
Description
Steps to reproduce
Ensure an Android emulator is running, then, run the following commands in a Terminal (Mac):
cd ~
flutter create checkapp --platforms android
cd checkapp
flutter runAnd the following errors will be output:
e: Incompatible classes were found in dependencies. Remove them from the classpath or use '-Xskip-metadata-version-check' to suppress errors
e: file://github.com/Users/matthew/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/2.2.0/fdfc65fbc42fda253a26f61dac3c0aca335fae96/kotlin-stdlib-2.2.0.jar!/META-INF/kotlin-stdlib-jdk7.kotlin_module Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.2.0, expected version is 2.0.0.
...
...
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':gradle:compileKotlin'.
> A failure occurred while executing org.jetbrains.kotlin.compilerRunner.GradleCompilerRunnerWithWorkers$GradleKotlinCompilerWorkAction
> Compilation error. See log for more details
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.
BUILD FAILED in 2s
Running Gradle task 'assembleDebug'... 2,649ms
┌─ Flutter Fix ──────────────────────────────────────────────────────────────────────────────────────────┐
│ [!] Your project requires a newer version of the Kotlin Gradle plugin. │
│ Find the latest version on https://kotlinlang.org/docs/releases.html#release-details, then update the │
│ version number of the plugin with id "org.jetbrains.kotlin.android" in the plugins block of │
│ /Users/Shared/build/checkapp/android/settings.gradle. │
│ │
│ Alternatively (if your project was created before Flutter 3.19), update │
│ /Users/Shared/build/checkapp/android/build.gradle │
│ ext.kotlin_version = '<latest-version>' │
└────────────────────────────────────────────────────────────────────────────────────────────────────────┘
Error: Gradle task assembleDebug failed with exit code 1I have also tried deleting:
rm -rf ~/.gradle/caches
cd android
./gradlewto force gradle to download again, but the same result occurs (Incompatible classes were found in dependencies.)
Expected results
Should work and create a running app.
Actual results
As above.
Code sample
n/a
Screenshots or Video
n/a
Logs
n/a
Flutter Doctor output
Doctor output
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.32.5, on macOS 15.5 24F74 darwin-arm64, locale en-NZ)
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.4)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2025.1)
[✓] IntelliJ IDEA Ultimate Edition (version 2025.1.1.1)
[✓] Connected device (3 available)
[✓] Network resources
• No issues found!