[20:55:09] [Server thread/ERROR]: [ModernPluginLoadingStrategy] Could not load plugin 'Veinminer-2.0.6.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: de/miraculixx/veinminer/Veinminer has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:127) ~[purpur-1.20.4.jar:git-Purpur-2176]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[purpur-1.20.4.jar:git-Purpur-2176]
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[purpur-1.20.4.jar:git-Purpur-2176]
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:38) ~[purpur-1.20.4.jar:git-Purpur-2176]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[purpur-1.20.4.jar:git-Purpur-2176]
at org.bukkit.craftbukkit.v1_20_R3.CraftServer.loadPlugins(CraftServer.java:521) ~[purpur-1.20.4.jar:git-Purpur-2176]
at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:311) ~[purpur-1.20.4.jar:git-Purpur-2176]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1146) ~[purpur-1.20.4.jar:git-Purpur-2176]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.4.jar:git-Purpur-2176]
at java.lang.Thread.run(Thread.java:842) ~[?:?]
Caused by: java.lang.UnsupportedClassVersionError: de/miraculixx/veinminer/Veinminer has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?]
at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:246) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:587) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:171) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:166) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?]
at java.lang.Class.forName0(Native Method) ~[?:?]
at java.lang.Class.forName(Class.java:467) ~[?:?]
at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:80) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:123) ~[purpur-1.20.4.jar:git-Purpur-2176]
... 9 more
The new Minecraft versions 1.20.5+ require Java 21 to run, therefore i upgraded with Veinminer too (to Java 21). You can start your server with Java 21 without any problems, even on lower versions.
Prior Purpur were using 17 (V.2.03 Beta)?
[20:55:09] [Server thread/ERROR]: [ModernPluginLoadingStrategy] Could not load plugin 'Veinminer-2.0.6.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: de/miraculixx/veinminer/Veinminer has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:127) ~[purpur-1.20.4.jar:git-Purpur-2176] at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:35) ~[purpur-1.20.4.jar:git-Purpur-2176] at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders(ModernPluginLoadingStrategy.java:116) ~[purpur-1.20.4.jar:git-Purpur-2176] at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:38) ~[purpur-1.20.4.jar:git-Purpur-2176] at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36) ~[purpur-1.20.4.jar:git-Purpur-2176] at org.bukkit.craftbukkit.v1_20_R3.CraftServer.loadPlugins(CraftServer.java:521) ~[purpur-1.20.4.jar:git-Purpur-2176] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:311) ~[purpur-1.20.4.jar:git-Purpur-2176] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1146) ~[purpur-1.20.4.jar:git-Purpur-2176] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:323) ~[purpur-1.20.4.jar:git-Purpur-2176] at java.lang.Thread.run(Thread.java:842) ~[?:?] Caused by: java.lang.UnsupportedClassVersionError: de/miraculixx/veinminer/Veinminer has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0 at java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.lang.ClassLoader.defineClass(ClassLoader.java:1012) ~[?:?] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:246) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:587) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.loadClass0(PluginClassLoader.java:171) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?] at org.bukkit.plugin.java.PluginClassLoader.loadClass(PluginClassLoader.java:166) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:520) ~[?:?] at java.lang.Class.forName0(Native Method) ~[?:?] at java.lang.Class.forName(Class.java:467) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.(PluginClassLoader.java:80) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.provider.type.spigot.SpigotPluginProvider.createInstance(SpigotPluginProvider.java:123) ~[purpur-1.20.4.jar:git-Purpur-2176]
... 9 more