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)

Pellicle

Please add error as code. – Artisan

In the screenshot all are covered. – Pellicle

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 😁

Embattle

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

Nador

Answer 3

1. Go to this location(C:\Program Files\Android\Android Studio\jbr)
2. Copy all the files from here
3. paste all the copied files in (jre) folder
4. Open your cmd and run flutter doctor again.

Farrah

Answer 4

Check flutter doctor status. The issue likely is in the java bundle.

Bonbon

Yes but how can i fix this issue. Please suggest. – Pellicle

Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. – Willett

Answer 5

checkjava --version in the terminal.

For me the issue was that it was using jdk 22 instead of jdk 17. Installing jdk 17 explicitly and exporting it to the PATH solved the issue for me.

Indign