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  4. "General error during conversion: Unsupported class file major version 63" when trying to build for android
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"General error during conversion: Unsupported class file major version 63" when trying to build for android

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  • M Offline
    M Offline
    mcarl
    wrote on 25 Feb 2023, 15:24 last edited by
    #1

    I am getting

    General error during conversion: Unsupported class file major version 63
    

    error while trying to build android project. I newly set up android kits from official installer. I tried to set default jdk to 19 and 11 and got same error for both.
    OS:Arch Linux
    Any advices about this?

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    • ? Offline
      ? Offline
      A Former User
      wrote on 28 Feb 2023, 19:30 last edited by
      #2

      I've had that same error.

      I've switched from JDK 19 to AdoptOpenJDK 11, plus switching from NDK 25.2.9519653 to 23.1.7779620 and now it works. At least for this issue.

      M 1 Reply Last reply 1 Mar 2023, 07:29
      1
      • ? A Former User
        28 Feb 2023, 19:30

        I've had that same error.

        I've switched from JDK 19 to AdoptOpenJDK 11, plus switching from NDK 25.2.9519653 to 23.1.7779620 and now it works. At least for this issue.

        M Offline
        M Offline
        mcarl
        wrote on 1 Mar 2023, 07:29 last edited by
        #3

        @ankou29666 Thank you for input. I solved this issue too, with changing gradle version on build folder gradle files. But after it i am getting

        FAILURE: Build failed with an exception.
        
        * What went wrong:
        Could not determine the dependencies of task ':packageDebug'.
        > Could not create task ':mergeDebugAssets'.
           > Cannot use @TaskAction annotation on method IncrementalTask.taskAction$gradle_core() because interface org.gradle.api.tasks.incremental.IncrementalTaskInputs is not a valid parameter to an action method.
        

        and couldnt find any solution yet.

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        25 Feb 2023, 15:24

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