Sammy1Am / Moppy2

The evolution of the Musical flOPPY controller
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Windows Java Runtime Error #196

Closed Wev-Oppy closed 1 year ago

Wev-Oppy commented 1 year ago

When running the MoppyControlGUI.bat in command prompt all i get is this error

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/moppy/control/MoppyControlGUI has been compiled by a more recent version of the Java Runtime (class file version 55.0), 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)

Wondering if anyone has a solution to this.

Sammy1Am commented 1 year ago

You can search on Google or through previous issues for more details, but in short you need to have a newer version of Java installed.

On Tue, Jul 18, 2023, 22:32 Wev-Oppy @.***> wrote:

When running the MoppyControlGUI.bat in command prompt all i get is this error

Exception in thread "main" java.lang.UnsupportedClassVersionError: com/moppy/control/MoppyControlGUI has been compiled by a more recent version of the Java Runtime (class file version 55.0), 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)

Wondering if anyone has a solution to this.

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Wev-Oppy commented 1 year ago

Turns out the version was too old. Thanks!