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Sammy1Am / Moppy2

The evolution of the Musical flOPPY controller
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java gui program error #170

Open philipbox-dev opened 1 year ago

philipbox-dev commented 1 year ago

Hi, i used this Gui on my old pc, but on the new pc, there's linux. when i tried to execute it, it showed:

Error: LinkageError occurred while loading main class com.moppy.control.MoppyControlGUI java.lang.UnsupportedClassVersionError: com/moppy/control/MoppyControlGUI has been compiled by a more recent version of the Java Runtime (class file version 59.0), this version of the Java Runtime only recognizes class file versions up to 55.0

Please help!

Sammy1Am commented 1 year ago

You need to use a more recent version of Java. I don't have the version numbers memorized (and I'm not in front of a computer now), but a quick Google will tell you what you need.

On Sat, Oct 15, 2022, 22:25 Philipbox @.***> wrote:

Hi, i used this Gui on my old pc, but on the new pc, there's linux. when i tried to execute it, it showed:

Error: LinkageError occurred while loading main class com.moppy.control.MoppyControlGUI java.lang.UnsupportedClassVersionError: com/moppy/control/MoppyControlGUI has been compiled by a more recent version of the Java Runtime (class file version 59.0), this version of the Java Runtime only recognizes class file versions up to 55.0

Please help!

— Reply to this email directly, view it on GitHub https://github.com/Sammy1Am/Moppy2/issues/170, or unsubscribe https://github.com/notifications/unsubscribe-auth/AADSF6FQIKT6OYVJTCMVDSLWDOGVPANCNFSM6AAAAAARGGNWY4 . You are receiving this because you are subscribed to this thread.Message ID: @.***>

Oldmanspub commented 1 year ago

MoppyControlGUI-2.1.0 was compiled with Java15, as it requires class file 59. If you are on old Java version (in your case class file 55 -> java 11), than you need to update your java, or compile source on Java11 to match with your system.

I had issue to run Moppy on Win7 32bit, as it has maximum Java 8, I had recompiled it for Java 8. Attached here. If you have class file issue, you can give a try. I used the same source as Sammy1Am has here, only replaced compile command to implementation in MoppyDeviceGui build.gradle, as my gradle version not supported compile command at dependencies.

MoppyJava8.zip