flutter not support Android Studio Narwhal 4 Feature Drop | 2025.1.4 Canary 4 AGP 9.0.0-alpha04

[android-dev2015]

Steps to reproduce

Use Android Studio Narwhal 4 Feature Drop | 2025.1.4 Canary 4 create new flutter project ,then upgrade project.

plugins {
    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
    id("com.android.application") version "9.0.0-alpha04" apply false
    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
}

gradle-9.1.0-rc-3-bin

Flutter 3.36.0-0.5.pre • channel beta • https://github.com/flutter/flutter.git
Framework • revision 6c79484210 (2 weeks ago) • 2025-08-27 16:02:04 -0700
Engine • hash 7f92ad05adebe99f2ffb55c86e1ba44804d3aece (revision 56f64c2647) (19 days ago) • 2025-08-22 23:54:20.000Z
Tools • Dart 3.10.0 (build 3.10.0-75.1.beta) • DevTools 2.49.0

build project error:

* What went wrong:
An exception occurred applying plugin request [id: 'kotlin-android']
> Failed to apply plugin 'kotlin-android'.
   > class com.android.build.gradle.internal.dsl.ApplicationExtensionImpl$AgpDecorated_Decorated cannot be cast to class com.android.build.gradle.BaseExtension (com.android.build.gradle.internal.dsl.ApplicationExtensionImpl$AgpDecorated_Decorated and com.android.build.gradle.BaseExtension are in unnamed module of loader org.gradle.internal.classloader.VisitableURLClassLoader$InstrumentingVisitableURLClassLoader @7e1bb44b)

Expected results

build success

Actual results

build failed

Code sample

Code sample

[Paste your code here]

plugins {
    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
    id("com.android.application") version "9.0.0-alpha04" apply false
    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
}

Screenshots or Video

Screenshots / Video demonstration

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Logs

Logs

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Flutter Doctor output

Doctor output

[Paste your output here]

[√] Flutter (Channel beta, 3.36.0-0.5.pre, on Microsoft Windows [版本 10.0.26100.4202], locale zh-CN)
[√] Windows Version (Windows 11 or higher, 24H2, 2009)
[√] Android toolchain - develop for Android devices (Android SDK version 36.0.0)
[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.14.8)
[√] Connected device (3 available)
[!] Network resources
    X A cryptographic error occurred while checking "https://storage.googleapis.com/": Connection terminated during handshake
      You may be experiencing a man-in-the-middle attack, your network may be compromised, or you may have malware installed on your computer.
    X A cryptographic error occurred while checking "https://maven.google.com/": Connection terminated during handshake
      You may be experiencing a man-in-the-middle attack, your network may be compromised, or you may have malware installed on your computer.

[darshankawar]

@android-dev2015
Since you are using Canary version of AS, the APIs might change once stable version is released and also considering the fact that canary versions are unstable, but to confirm if this is Flutter specific or not, can you try to create a Android project with specific gradle version required and see if it works properly or not ? Another test to verify from your end is to check if an older or recent Flutter project you created using previous AS version runs properly or not.

[android-dev2015]

Android Studio Narwhal 4 Feature Drop | 2025.1.4 Canary 5 AGP 9.0.0-alpha05 , it work
Reference: https://issuetracker.google.com/issues/442055765

[darshankawar]

Good to know, seems it be related to AGP version, so I'll close as resolved.

[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.