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Failed to run Forge server for 1.14.4


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Forge version: 28.0.17

Minecraft version: 1.14.4

Java: 1.8 64-bit

OS: Windows 10 64-bit

 

What I did:

1. I installed Forge installer from Forge's site.

2. Ran it and installed "forged" server in an empty folder.

3. I launched vanilla server jar(*minecraft_server.1.14.4.jar*), stopped it, accepted the EULA and ran the server again. 

4. Then I ran the "forged" server jar(*forge-1.14.4-28.0.17.jar*) with the arguments shown in the console output below. It fails with the *java.lang.UnsupportedOperationException* exception.

 

It was supposed to open the Minecraft server GUI I guess. 

I think the problem is in compatibility of my environment and the Forge server.

Earlier I tried to setup 1.12.2 modded server. I tried 3 versions of Forge all were failing on the same stage with a different exception, I reported it on GitHub, they redirected me to Forge forum. Before that I tried installing vanilla server, it worked fine, I could join the server.

 

Thanks in advance!

 

Output:

Quote

C:\Users\AntonBespoiasov\AppData\Roaming\.minecraft J\localserver\1.14.4_forge>java -server -Xms512M -Xmx1024M -jar forge-1.14.4-28.0.17.jar
2021-01-10 16:58:29,851 main WARN Disabling terminal, you're running in an unsupported environment.
[16:58:30.093] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 28.0.17, --fml.mcpVersion, 20190719.225934, --fml.mcVersion, 1.14.4, --fml.forgeGroup, net.minecraftforge]
[16:58:30.099] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 3.0.2+57+a2bc918 starting: java version 11.0.8 by AdoptOpenJDK
[16:58:31.066] [main/INFO] [ne.mi.fm.lo.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[16:58:31.691] [main/INFO] [STDERR/]: [jdk.nashorn.api.scripting.NashornScriptEngine:<init>:143]: Warning: Nashorn engine is planned to be removed from a future JDK release
[16:58:32.584] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlserver' with arguments [--gameDir, .]
Exception in thread "main" [16:58:32.827] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: java.lang.RuntimeException: java.lang.UnsupportedOperationException
[16:58:32.828] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
[16:58:32.830] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:50)
[16:58:32.834] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:68)
[16:58:32.836] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at cpw.mods.modlauncher.Launcher.run(Launcher.java:80)
[16:58:32.844] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
[16:58:32.847] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63)
[16:58:32.851] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60)
[16:58:32.856] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:   at net.minecraftforge.server.ServerMain.main(ServerMain.java:57)
[16:58:32.870] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: Caused by: java.lang.UnsupportedOperationException
[16:58:32.874] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:   at org.objectweb.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)
[16:58:32.887] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:   at org.objectweb.asm.ClassReader.accept(ClassReader.java:651)
[16:58:32.891] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:   at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
[16:58:32.898] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:   at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83)
[16:58:32.903] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:   at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35)

 

Edited by AntonBespoiasov
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