Flutter Unsupported class file major version 63 Android studio

Question

I'm getting error after update the Android version and flutter version. Right now I want add the "file_picker: ^5.2.5", and "cached_network_image: ^3.2.3" plugin so getting "General error during conversion: Unsupported class file major version 63" error. I have checked many solution but nothing one to help me. Please help me for fix this issue.

Flutter version:- Flutter 3.3.3 • channel stable • https://github.com/flutter/flutter.git Framework • revision 18a827f393 (4 months ago) • 2022-09-28 10:03:14 -0700 Engine • revision 5c984c26eb Tools • Dart 2.18.2 • DevTools 2.15.0

Android Studio version:- Android Studio Electric Eel | 2022.1.1 Build #AI-221.6008.13.2211.9477386, built on January 11, 2023 Runtime version: 11.0.15+0-b2043.56-8887301 aarch64 VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o. macOS 13.1 GC: G1 Young Generation, G1 Old Generation Memory: 1280M Cores: 8 Registry: external.system.auto.import.disabled=true ide.text.editor.with.preview.show.floating.toolbar=false

Non-Bundled Plugins: com.github.dhaval2404.material_icon_generator (1.3) Dart (221.6091) pl.pszklarska.pubversionchecker (1.3.5) io.flutter (71.2.4)

Answer 1

I finally found the solution of this problem :-

soo just go at your project folder and then open android/gradle/wrapper/gradle-wrapper-properties then change this :-

distributionUrl=https://services.gradle.org/distributions/gradle-7.4-all.zip

To This :-

distributionUrl=https://services.gradle.org/distributions/gradle-7.6-all.zip

and then your issue get solved 😁

Answer 2

tl;dr Update Android Studio and Gradle Versions

I encountered this error while trying to run Flutter integration tests on Firebase Test Lab. I was able to solve this by updating a few things in Android Studio.

Update the Project's JDK

1. Open the Android Studio Project Structure page (File -> Project Structure)

2. Click the "SDKs" tab

3. Download the newest JDK version and add it to the list

4. Click the "Project" tab

5. Update the SDK field to the new JDK

Update com.android.tools.build:gradle

In android/build.gradle, update the com.android.tools.build:gradle value to the latest version found here.

 dependencies {
        classpath 'com.android.tools.build:gradle:7.4.1'
        ...
    }

Update the gradle distributionUrl

In android/gradle/wrapper/gradle-wrapper.properties, update the distributionUrl property to use the latest Gradle version.

distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-all.zip