PacketAdapter

[Kai-Denzel-Jane]

Make sure you're doing the following

• [Y] You're using the latest build for your server version
• [~] This isn't an issue caused by another plugin
• [Y] You've checked for duplicate issues
• [Y] You didn't use /reload

Describe the question Why am I getting the following error when I have ProtocolLib in the Projects dependencies and the JAR file is in the plugins folder:

[19:27:29 ERROR]: Error occurred while enabling ClientInfo v1.0 (Is it up to date?) java.lang.NoClassDefFoundError: com/comphenix/protocol/events/PacketAdapter at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[?:?] at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1027) ~[?:?] at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150) ~[?:?] at io.papermc.paper.plugin.entrypoint.classloader.PaperSimplePluginClassLoader.findClass(PaperSimplePluginClassLoader.java:103) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:593) ~[?:?] at io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader.loadClass(PaperPluginClassLoader.java:118) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader.loadClass(PaperPluginClassLoader.java:107) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] at ClientInfo-1.0-SNAPSHOT.jar/net.kaijane.clientInfo.ClientInfo.onEnable(ClientInfo.java:15) ~[ClientInfo-1.0-SNAPSHOT.jar:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:288) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?] at io.papermc.paper.plugin.manager.PaperPluginInstanceManager.enablePlugin(PaperPluginInstanceManager.java:202) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.enablePlugin(PaperPluginManagerImpl.java:109) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:520) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?] at org.bukkit.craftbukkit.CraftServer.enablePlugin(CraftServer.java:669) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:618) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:772) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:534) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:369) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1251) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:344) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?] Caused by: java.lang.ClassNotFoundException: com.comphenix.protocol.events.PacketAdapter at io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader.loadClass(PaperPluginClassLoader.java:146) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at io.papermc.paper.plugin.entrypoint.classloader.PaperPluginClassLoader.loadClass(PaperPluginClassLoader.java:107) ~[purpur-1.21.4.jar:1.21.4-2376-4bf1b98] at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] ... 21 more

API method(s) used PacketAdapter

Expected behavior My plugin sees ProtocolLib and its classes resulting in it not failing to enable the plugin

Code https://github.com/Kai-Denzel-Jane/ClientInfo

[Runkang10]

Aren't you shading ProtocolLib?

[Runkang10]

Your repo is not available so we cannot see your source code.

[Kai-Denzel-Jane]

Your repo is not available so we cannot see your source code.

Sorry about that its now public forget making repos from IntelliJ are Private by default

[Runkang10]

Set ProtocolLib as compileOnly dependency.

[Runkang10]

repositories {
    maven { url "https://repo.dmulloy2.net/repository/public/" }
}

dependencies {
    compileOnly 'com.comphenix.protocol:ProtocolLib:5.1.0'
}

[MarkManFlame55]

its happening the same for me with every packet listener. NoClassDefFound and my plugin gets unloaded. I have ProtoclLib as a Dependency on my build.gradle and installed on my server, and it keeps throwing me that exception.

[Runkang10]

Also check if ProtocolLib supports the current server version that you're using.