'modder --help' throws error

[Dhyfer1]

Hi dev.

My phone is not rooted, and I have followed the steps correctly for setting up the ModderRelease.zip file as you show in the tutorial video.

But when I run the modder --help command I get the following error:

C:\Users\diego>modder --help
Exception in thread "main" java.lang.Unsupported ClassVersionError: modder/Main 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 52.0
        at java.lang.ClassLoader.defineClass1(Native Method) 
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source) 
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged (Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source) 
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source) 
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

C:\Users\diego>>

I have installed the latest version of Java SE Runtime Environment 8u401. I am using Windows 11 64bits, the JAVA_HOME system variable is created correctly.

I don't understand why I get this error, I followed the steps in the video correctly.

[cns00]

I actually just had the same issue and I solved it. Java Runtime Environment can only run up to class version 52 and it doesn't matter if you have the latest version of Java Runtime Environment installed. You have to install JDK Development kit which you can get from https://www.oracle.com/java/technologies/downloads/#jdk21-windows. JDK Development kit can run class version 61. I installed JDK Development kit and I was able to run modder.

[Dhyfer1]

@cns00 Thank you very much! I did what you said, I installed the latest version of the JDK and modder --help no longer throws an error.

But before doing that, I had tried installing Java SE Development Kit 8u401, but it also gave me the same error as with JRE, so the only solution is to install the latest JDK.

@KuhakuPixel You should mention Java Development Kit as a requirement in your repository to be able to work with modder, or at least point it out in the tutorial video.

Now that this issue is solved, I can close it. Thanks for the solution 👍