[Compile]: The 'org.jetbrains.kotlin.android' plugin is no longer required for Kotlin support since AGP 9.0

[andikatp]

Operating System

Hyperland OS

Plugin

share_plus

Version

9.1.0

Flutter SDK

3.38.7

Compilation command

flutter run --flavor dev --target lib/main_dev.dart

Dart Dependencies

Native dependencies

Compilation Error

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* Where:
Build file '/home/dgti/.puro/shared/pub_cache/hosted/pub.dev/share_plus-12.0.1/android/build.gradle' line: 25

* What went wrong:
A problem occurred evaluating project ':share_plus'.
> Failed to apply plugin 'kotlin-android'.
   > ⛔ Failed to apply plugin 'org.jetbrains.kotlin.android'
     The 'org.jetbrains.kotlin.android' plugin is no longer required for Kotlin support since AGP 9.0.
     Solution: Remove the 'org.jetbrains.kotlin.android' plugin from this project's build file: ../../../../../home/dgti/.puro/shared/pub_cache/hosted/pub.dev/share_plus-12.0.1/android/build.gradle.
     See https://kotl.in/gradle/agp-built-in-kotlin for more details.
      > java.lang.Throwable (no error message)

* 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 generate a Build Scan (Powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring project ':share_plus'.
> Failed to notify project evaluation listener.
2
   > java.lang.NullPointerException (no error message)
   > Android Gradle Plugin: project ':share_plus' does not specify `compileSdk` in build.gradle (/home/dgti/.puro/shared/pub_cache/hosted/pub.dev/share_plus-12.0.1/android/build.gradle).

* 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 generate a Build Scan (Powered by Develocity).
> Get more help at https://help.gradle.org.
==============================================================================

BUILD FAILED in 13s

┌─ Flutter Fix ────────────────────────────────────────────────────────────────────────────────┐
│ [!] Starting AGP 9+, the default has become built-in Kotlin. This results in a build failure │
│ when applying the kotlin-android plugin at                                                   │
│ /mnt/961E6ADA1E6AB2C3/dayaguna/new_hrm/android/app/build.gradle.kts.                         │
│                                                                                              │
│ To resolve this, migrate to built-in Kotlin. For instructions on how to migrate, see:        │
│ https://docs.flutter.dev/release/breaking-changes/migrate-to-agp-9                           │
└──────────────────────────────────────────────────────────────────────────────────────────────┘
Error: Gradle task assembleDevDebug failed with exit code 1

Exited (1).

Flutter Doctor

[✓] Flutter (Channel stable, 3.38.7, on CachyOS 6.18.6-2-cachyos, locale en_US.UTF-8) [60ms]
    • Flutter version 3.38.7 on channel stable at /home/dgti/.puro/envs/stable/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 3b62efc2a3 (8 days ago), 2026-01-13 13:47:42 -0800
    • Engine revision 78fc3012e4
    • Dart version 3.10.7
    • DevTools version 2.51.1
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop, enable-windows-desktop, enable-android, enable-ios,
      cli-animations, enable-native-assets, omit-legacy-version-file, enable-lldb-debugging, enable-uiscene-migration

[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0) [1,890ms]
    • Android SDK at /home/dgti/Android/Sdk
    • Emulator version unknown
    • Platform android-36, build-tools 36.0.0
    • ANDROID_HOME = /home/dgti/Android/Sdk
    • ANDROID_SDK_ROOT = /opt/android-sdk
    • Java binary at: /usr/bin/java
      This JDK was found in the system PATH.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 17.0.17+10)
    • All Android licenses accepted.

[✓] Chrome - develop for the web [56ms]
    • CHROME_EXECUTABLE = /usr/bin/firefox

[✗] Linux toolchain - develop for Linux desktop [552ms]
    • clang version 21.1.6
    ✗ CMake is required for Linux development.
      It is likely available from your distribution (e.g.: apt install cmake), or can be downloaded from https://cmake.org/download/
    ✗ ninja is required for Linux development.
      It is likely available from your distribution (e.g.: apt install ninja-build), or can be downloaded from
      https://github.com/ninja-build/ninja/releases
    • pkg-config version 2.5.1
    • OpenGL core renderer: Mesa Intel(R) Iris(R) Xe Graphics (TGL GT2)
    • OpenGL core version: 4.6 (Core Profile) Mesa 25.3.3-arch1.6
    • OpenGL core shading language version: 4.60
    • OpenGL ES renderer: Mesa Intel(R) Iris(R) Xe Graphics (TGL GT2)
    • OpenGL ES version: OpenGL ES 3.2 Mesa 25.3.3-arch1.6
    • OpenGL ES shading language version: OpenGL ES GLSL ES 3.20
    • GL_EXT_framebuffer_blit: yes
    • GL_EXT_texture_format_BGRA8888: yes

[✓] Connected device (3 available) [367ms]
    • SM A035F (mobile) • R9RT604YL5R • android-arm64  • Android 13 (API 33)
    • Linux (desktop)   • linux       • linux-x64      • CachyOS 6.18.6-2-cachyos
    • Chrome (web)      • chrome      • web-javascript • Mozilla Firefox 147.0.1

[✓] Network resources [477ms]
    • All expected network resources are available.

Checklist before submitting a bug

• I searched issues in this repository and couldn't find such bug/problem
• I Google'd a solution and I couldn't find it
• I searched on StackOverflow for a solution and I couldn't find it
• I read the README.md file of the plugin
• I'm using the latest version of the plugin
• All dependencies are up to date with flutter pub upgrade
• I did a flutter clean
• I tried running the example project

[bartvanandel]

This applies to other plugins as well, e.g. device_info_plus:

Build file '/Users/bart/.pub-cache/hosted/pub.dev/device_info_plus-12.3.0/android/build.gradle' line: 25

A problem occurred evaluating project ':device_info_plus'.
> Failed to apply plugin 'kotlin-android'.
   > Cannot add extension with name 'kotlin', as there is an extension already registered with that name.

[BunnyBuddy]

Same issue here, any progress?

[vbuberen]

Compatibility with AGP 9 will be resolved once there is an official green light from the Flutter team.
As mentioned in the https://docs.flutter.dev/release/breaking-changes/migrate-to-agp-9 :

Current status: Please do not update your Flutter app for Android to AGP 9. Flutter apps using plugins are currently incompatible with AGP 9: Issue #181383. This support is paused while the Flutter team audits the migration for backwards compatibility with older versions of AGP.