SQLGUY

I am stuck.... I have zero mods in the folder, just trying to get Forge to run... if I run the normal Minecraft server, it works fine... vanilla. As soon as I launch the Forge server, I get the following: root@minecraft:/home/minecraft# java -Xms2G -Xmx5G -jar forge-1.14.4-28.2.23.jar --nogui [22:14:13] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher running: args [--gameDir, ., --launchTarget, fmlserver, --fml.forgeVersion, 28.2.23, --fml.mcpVersion, 20190829.143755, --fml.mcVersion, 1.14.4, --fml.forgeGroup, net.minecraftforge, --nogui] [22:14:13] [main/INFO] [cp.mo.mo.Launcher/MODLAUNCHER]: ModLauncher 4.1.0+62+5bfa59b starting: java version 11.0.8 by Debian [22:14:13] [main/INFO] [ne.mi.fm.lo.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust [22:14:14] [main/INFO] [STDERR/]: [jdk.nashorn.api.scripting.NashornScriptEngine:<init>:143]: Warning: Nashorn engine is planned to be removed from a future JDK release [22:14:15] [main/INFO] [cp.mo.mo.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlserver' with arguments [--gameDir, ., --nogui] Exception in thread "main" [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: java.lang.RuntimeException: java.lang.UnsupportedOperationException [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain$Runner.runLauncher(ServerMain.java:63) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain$Runner.access$100(ServerMain.java:60) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: at net.minecraftforge.server.ServerMain.main(ServerMain.java:57) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: Caused by: java.lang.UnsupportedOperationException [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:651) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:391) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:525) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:391) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:525) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:391) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:525) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.ClassReader.accept(ClassReader.java:391) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.getSupers(TransformerClassWriter.java:54) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformerClassWriter.getCommonSuperClass(TransformerClassWriter.java:99) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.SymbolTable.addMergedType(SymbolTable.java:1209) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.Frame.merge(Frame.java:1293) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.Frame.merge(Frame.java:1175) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.MethodWriter.computeAllFrames(MethodWriter.java:1604) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.MethodWriter.visitMaxs(MethodWriter.java:1540) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:807) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:687) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at org.objectweb.asm.tree.ClassNode.accept(ClassNode.java:436) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:121) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:241) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:128) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/java.lang.Class.forName0(Native Method) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at java.base/java.lang.Class.forName(Class.java:398) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at net.minecraftforge.fml.loading.FMLServerLaunchProvider.lambda$launchService$0(FMLServerLaunchProvider.java:51) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [22:14:16] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: ... 7 more

I am trying to uninstall the server version 1.15x to install 1.14x... since I tried 1.15x (which didn't have the mods I wanted) now when I try to run 1.14.4 I get Java errors on the server. I had done this.. java -jar forge-1.15.2-31.2.37-installer.jar --installServer Is there an --removeServer or --uninstallServer option? There must be 1.15x files lingering that are killing me... Thanks!