If this problem hasn't already been reported, please open a ticket

at https://github.com/dmulloy2/ProtocolLib/issues with the following data:

Stack Trace:

java.lang.IllegalArgumentException: Unable to find a field that matches {modifiers=[required: 10000, banned: 1000], type={ type input instanceof interface java.util.Map }}

at ProtocolLib.jar//com.comphenix.protocol.reflect.FuzzyReflection.getField(FuzzyReflection.java:352)

at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.createNewRegister(PacketRegistry.java:188)

at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.initialize(PacketRegistry.java:292)

at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.getClientPacketTypes(PacketRegistry.java:327)

at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterManager.(PacketFilterManager.java:120)

at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterBuilder.build(PacketFilterBuilder.java:121)

at ProtocolLib.jar//com.comphenix.protocol.ProtocolLib.onLoad(ProtocolLib.java:183)

at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:59)

at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:18)

at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:40)

at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36)

at org.bukkit.craftbukkit.v1_20_R2.CraftServer.loadPlugins(CraftServer.java:512)

at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:273)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1086)

at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315)

at java.base/java.lang.Thread.run(Thread.java:833)

Dump:

Parameters:

[NULL]

Sender:

com.comphenix.protocol.ProtocolLib@4f69e9bc[

statistics=

packetTask=

tickCounter=0

configExpectedMod=-1

updater=com.comphenix.protocol.updater.SpigotUpdater@507a5bcb

redirectHandler=

scheduler=com.comphenix.protocol.scheduler.DefaultScheduler@5d7520ea

commandProtocol=

commandPacket=

commandFilter=

packetLogging=

skipDisable=false

isEnabled=false

loader=io.papermc.paper.plugin.manager.DummyBukkitPluginLoader@19d73988

server=CraftServer{serverName=Paper,serverVersion=git-Paper-243,minecraftVersion=1.20.2}

file=plugins/ProtocolLib.jar

description=org.bukkit.plugin.PluginDescriptionFile@1b55b3f1

pluginMeta=org.bukkit.plugin.PluginDescriptionFile@1b55b3f1

dataFolder=plugins/ProtocolLib

classLoader=PluginClassLoader{plugin=ProtocolLib v5.1.0, pluginEnabled=false, url=plugins/ProtocolLib.jar}

naggable=true

newConfig=YamlConfiguration[path='', root='YamlConfiguration']

configFile=plugins/ProtocolLib/config.yml

logger=com.destroystokyo.paper.utils.PaperPluginLogger@4fe8cd0a

]

Version:

ProtocolLib v5.1.0

Java Version:

17.0.7

Server:

git-Paper-243 (MC: 1.20.2)

Same problem, but on 1.20.4
Stack Trace:
java.lang.IllegalArgumentException: Unable to find a field that matches {modifiers=[required: 10000, banned: 1000], type={ type input instanceof interface java.util.Map }}
at ProtocolLib.jar//com.comphenix.protocol.reflect.FuzzyReflection.getField(FuzzyReflection.java:352)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.createNewRegister(PacketRegistry.java:188)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.initialize(PacketRegistry.java:292)
at ProtocolLib.jar//com.comphenix.protocol.injector.packet.PacketRegistry.getClientPacketTypes(PacketRegistry.java:327)
at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterManager.(PacketFilterManager.java:120)
at ProtocolLib.jar//com.comphenix.protocol.injector.PacketFilterBuilder.build(PacketFilterBuilder.java:121)
at ProtocolLib.jar//com.comphenix.protocol.ProtocolLib.onLoad(ProtocolLib.java:183)
at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:59)
at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:18)
at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:39)
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:36)
at org.bukkit.craftbukkit.v1_20_R3.CraftServer.loadPlugins(CraftServer.java:505)
at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:273)
at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1132)
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:321)
at java.base/java.lang.Thread.run(Thread.java:840)
Dump:
Parameters:
[NULL]
Sender:
com.comphenix.protocol.ProtocolLib@3ef25905[
statistics=
packetTask=
tickCounter=0
configExpectedMod=-1
updater=com.comphenix.protocol.updater.SpigotUpdater@1a8d5161
redirectHandler=
scheduler=com.comphenix.protocol.scheduler.DefaultScheduler@26c760cf
commandProtocol=
commandPacket=
commandFilter=
packetLogging=
skipDisable=false
isEnabled=false
loader=io.papermc.paper.plugin.manager.DummyBukkitPluginLoader@71846018
server=CraftServer{serverName=Paper,serverVersion=git-Paper-355,minecraftVersion=1.20.4}
file=plugins/ProtocolLib.jar
description=org.bukkit.plugin.PluginDescriptionFile@2de471d6
pluginMeta=org.bukkit.plugin.PluginDescriptionFile@2de471d6
dataFolder=plugins/ProtocolLib
classLoader=PluginClassLoader{plugin=ProtocolLib v5.1.0, pluginEnabled=false, url=plugins/ProtocolLib.jar}
naggable=true
newConfig=YamlConfiguration[path='', root='YamlConfiguration']
configFile=plugins/ProtocolLib/config.yml
logger=com.destroystokyo.paper.utils.PaperPluginLogger@626e9f12
]
Version:
ProtocolLib v5.1.0
Java Version:
17.0.9
Server:
git-Paper-355 (MC: 1.20.4)

Same: https://pastebin.com/GFgAeKvp
Bug-Report: #2707

Please update to the latest development build that supports 1.20.2 to 1.20.4: https://ci.dmulloy2.net/job/ProtocolLib/679/artifact/build/libs/ProtocolLib.jar