Question 232111 in Ubuntu Question posted in
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Ubuntu – Error: LinkageError occurred while loading main class com.android.sdklib.tool.sdkmanager.SdkManagerCli

I am trying to set up flutter with VS Code in Ubuntu. I have followed the installation guide and have installed the latest cmdline tools as required by the flutter doctor.

Now this is the output I get on running flutter doctor again

    ✗ Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/linux#android-setup for more details.

On running flutter doctor --android-licenses I get the following error

java.lang.UnsupportedClassVersionError: 
com/android/sdklib/tool/sdkmanager/SdkManagerCli has been compiled 
by a more recent version of the Java Runtime (class file version 61.0), 
this version of the Java Runtime only recognizes class file versions up to 55.0

I tried upgrading to Java 17 using sudo apt install openjdk-17-jdk and set up the environment variables but the problem still persists.

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2

Answers


  1. 0

    I had the exact same problem but on Windows.
    I solved it by completely uninstalling JDK, which searching on internet turned out to be a possible problem, and installing the latest version (20).

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  2. 0

    I had the same problem and fix it by removing the version installed (openjdk-11-jre and openjdk-11-jdk) and installing the newest one (openjdk-19-jre and openjdk-19-jdk).

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