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[GH-ISSUE #4436] [Bug]: PaperMC: Cant downgrade to 1.20, Java crashes with "NumberFormatException: For input string "default" #2774

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opened 2026-02-27 03:05:21 +03:00 by kerem · 3 comments

kerem commented

2026-02-27 03:05:21 +03:00

Owner

Originally created by @Elekam on GitHub (Jan 3, 2024).
Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/4436

User story

I want to run a PaperMC server with version 1.20

Game

PaperMC

Linux distro

Ubuntu 22.04

Command

command: start

Further information

The server works fine when running "mcversion=1.20.4", but when I change it to "1.20", the server/java crashes on startup with the following error "java.lang.NumberFormatException: For input string: "default"".

I found the "level-type=default" setting in my server.properties and changed it to "minecraft:normal" like it says on the PaperMC website.

My server.properties file is attached.
server.properties.txt

Relevant log output

[23:48:43] [ServerMain/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
[23:48:43] [ServerMain/INFO]: Loaded 7 recipes
[23:48:43] [Server thread/INFO]: Starting minecraft server version 1.20
[23:48:43] [Server thread/INFO]: Loading properties
[23:48:43] [Server thread/INFO]: This server is running Paper version git-Paper-17 (MC: 1.20) (Implementing API version 1.20-R0.1-SNAPSHOT) (Git: c287e92)
[23:48:43] [Server thread/INFO]: Server Ping Player Sample Count: 12
[23:48:43] [Server thread/INFO]: Using 4 threads for Netty based IO
[23:48:44] [Server thread/WARN]: [!] The timings profiler has been enabled but has been scheduled for removal from Paper in the future.
    We recommend installing the spark profiler as a replacement: https://spark.lucko.me/
    For more information please visit: https://github.com/PaperMC/Paper/issues/8948
[23:48:44] [Server thread/INFO]: [ChunkTaskScheduler] Chunk system is using 1 I/O threads, 5 worker threads, and gen parallelism of 5 threads
[23:48:44] [Server thread/ERROR]: Encountered an unexpected exception
org.spongepowered.configurate.serialize.SerializationException: [entities, spawning, monster-spawn-max-light-level] of type java.lang.Integer: java.lang.NumberFormatException: For input string: "default"
	at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:346) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$9(NumericSerializers.java:254) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?]
	at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17]
	at java.lang.Thread.run(Thread.java:840) ~[?:?]
	Suppressed: org.spongepowered.configurate.serialize.SerializationException: [entities, behavior, zombie-villager-infection-chance] of type java.lang.Double: java.lang.NumberFormatException: For input string: "default"
		at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$3(NumericSerializers.java:144) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?]
		at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?]
		at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17]
		at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17]
		at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17]
		at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17]
		at java.lang.Thread.run(Thread.java:840) ~[?:?]
	Caused by: java.lang.NumberFormatException: For input string: "default"
		at jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054) ~[?:?]
		at jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110) ~[?:?]
		at java.lang.Double.parseDouble(Double.java:651) ~[?:?]
		at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$3(NumericSerializers.java:142) ~[configurate-core-4.1.2.jar:?]
		... 19 more
Caused by: java.lang.NumberFormatException: For input string: "default"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?]
	at java.lang.Integer.parseInt(Integer.java:668) ~[?:?]
	at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:344) ~[configurate-core-4.1.2.jar:?]
	... 20 more
[23:48:44] [Server thread/ERROR]: 	Cause of unexpected exception was
java.lang.NumberFormatException: For input string: "default"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?]
	at java.lang.Integer.parseInt(Integer.java:668) ~[?:?]
	at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:344) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$9(NumericSerializers.java:254) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?]
	at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?]
	at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17]
	at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17]
	at java.lang.Thread.run(Thread.java:840) ~[?:?]
[23:48:44] [Server thread/ERROR]: This crash report has been saved to: /home/pmcserver/serverfiles/./crash-reports/crash-2024-01-03_23.48.44-server.txt
[23:48:44] [Server thread/INFO]: Stopping server
[23:48:44] [Server thread/INFO]: Saving players
[23:48:44] [Server thread/INFO]: Saving worlds
[23:48:44] [Server thread/INFO]: ThreadedAnvilChunkStorage: All dimensions are saved
[23:48:44] [Server thread/INFO]: Flushing Chunk IO
[23:48:44] [Server thread/INFO]: Closing Thread Pool
[23:48:44] [Server thread/INFO]: Closing Server

Steps to reproduce

Run a PaperMC 1.20.4 server
Add "mcserver=1.20" to the pmcserver.cfg
Reinstall with ./pmcserver install
Start the server
Crash

Originally created by @Elekam on GitHub (Jan 3, 2024). Original GitHub issue: https://github.com/GameServerManagers/LinuxGSM/issues/4436 ### User story I want to run a PaperMC server with version 1.20 ### Game PaperMC ### Linux distro Ubuntu 22.04 ### Command command: start ### Further information The server works fine when running "mcversion=1.20.4", but when I change it to "1.20", the server/java crashes on startup with the following error "java.lang.NumberFormatException: For input string: "default"". I found the "level-type=default" setting in my server.properties and changed it to "minecraft:normal" like it says on the PaperMC website. My server.properties file is attached. [server.properties.txt](https://github.com/GameServerManagers/LinuxGSM/files/13824214/server.properties.txt) ### Relevant log output ```shell [23:48:43] [ServerMain/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD' [23:48:43] [ServerMain/INFO]: Loaded 7 recipes [23:48:43] [Server thread/INFO]: Starting minecraft server version 1.20 [23:48:43] [Server thread/INFO]: Loading properties [23:48:43] [Server thread/INFO]: This server is running Paper version git-Paper-17 (MC: 1.20) (Implementing API version 1.20-R0.1-SNAPSHOT) (Git: c287e92) [23:48:43] [Server thread/INFO]: Server Ping Player Sample Count: 12 [23:48:43] [Server thread/INFO]: Using 4 threads for Netty based IO [23:48:44] [Server thread/WARN]: [!] The timings profiler has been enabled but has been scheduled for removal from Paper in the future. We recommend installing the spark profiler as a replacement: https://spark.lucko.me/ For more information please visit: https://github.com/PaperMC/Paper/issues/8948 [23:48:44] [Server thread/INFO]: [ChunkTaskScheduler] Chunk system is using 1 I/O threads, 5 worker threads, and gen parallelism of 5 threads [23:48:44] [Server thread/ERROR]: Encountered an unexpected exception org.spongepowered.configurate.serialize.SerializationException: [entities, spawning, monster-spawn-max-light-level] of type java.lang.Integer: java.lang.NumberFormatException: For input string: "default" at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:346) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$9(NumericSerializers.java:254) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?] at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17] at java.lang.Thread.run(Thread.java:840) ~[?:?] Suppressed: org.spongepowered.configurate.serialize.SerializationException: [entities, behavior, zombie-villager-infection-chance] of type java.lang.Double: java.lang.NumberFormatException: For input string: "default" at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$3(NumericSerializers.java:144) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?] at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17] at java.lang.Thread.run(Thread.java:840) ~[?:?] Caused by: java.lang.NumberFormatException: For input string: "default" at jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054) ~[?:?] at jdk.internal.math.FloatingDecimal.parseDouble(FloatingDecimal.java:110) ~[?:?] at java.lang.Double.parseDouble(Double.java:651) ~[?:?] at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$3(NumericSerializers.java:142) ~[configurate-core-4.1.2.jar:?] ... 19 more Caused by: java.lang.NumberFormatException: For input string: "default" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?] at java.lang.Integer.parseInt(Integer.java:668) ~[?:?] at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:344) ~[configurate-core-4.1.2.jar:?] ... 20 more [23:48:44] [Server thread/ERROR]: Cause of unexpected exception was java.lang.NumberFormatException: For input string: "default" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:67) ~[?:?] at java.lang.Integer.parseInt(Integer.java:668) ~[?:?] at org.spongepowered.configurate.serialize.NumericSerializers.parseNumber(NumericSerializers.java:344) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.NumericSerializers.lambda$static$9(NumericSerializers.java:254) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.FunctionScalarSerializer.deserialize(FunctionScalarSerializer.java:40) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.serialize.ScalarSerializer.deserialize(ScalarSerializer.java:115) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load0(ObjectMapperImpl.java:64) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperImpl.load(ObjectMapperImpl.java:48) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.objectmapping.ObjectMapperFactoryImpl.deserialize(ObjectMapperFactoryImpl.java:204) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.AbstractConfigurationNode.get(AbstractConfigurationNode.java:151) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.get(ConfigurationNode.java:520) ~[configurate-core-4.1.2.jar:?] at org.spongepowered.configurate.ConfigurationNode.require(ConfigurationNode.java:407) ~[configurate-core-4.1.2.jar:?] at io.papermc.paper.configuration.Configurations.initializeWorldDefaultsConfiguration(Configurations.java:154) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:210) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1101) ~[paper-1.20.jar:git-Paper-17] at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.jar:git-Paper-17] at java.lang.Thread.run(Thread.java:840) ~[?:?] [23:48:44] [Server thread/ERROR]: This crash report has been saved to: /home/pmcserver/serverfiles/./crash-reports/crash-2024-01-03_23.48.44-server.txt [23:48:44] [Server thread/INFO]: Stopping server [23:48:44] [Server thread/INFO]: Saving players [23:48:44] [Server thread/INFO]: Saving worlds [23:48:44] [Server thread/INFO]: ThreadedAnvilChunkStorage: All dimensions are saved [23:48:44] [Server thread/INFO]: Flushing Chunk IO [23:48:44] [Server thread/INFO]: Closing Thread Pool [23:48:44] [Server thread/INFO]: Closing Server ``` ### Steps to reproduce 1. Run a PaperMC 1.20.4 server 2. Add "mcserver=1.20" to the pmcserver.cfg 3. Reinstall with ./pmcserver install 4. Start the server 5. Crash

kerem added the

game: Ark: Survival Evolved

labels

2026-02-27 03:05:21 +03:00

kerem commented

2026-02-27 03:05:22 +03:00

Author

Owner

@LoudStank commented on GitHub (May 26, 2024):

has this been fixed? i also need to run a 1.20 server

@LoudStank commented on GitHub (May 26, 2024): has this been fixed? i also need to run a 1.20 server

kerem commented

2026-02-27 03:05:22 +03:00

Author

Owner

@h3o66 commented on GitHub (May 26, 2024):

this was not fixed yet.
Does someone know what version does change this ?

ref to the config what is used:
https://github.com/GameServerManagers/Game-Server-Configs/blob/main/pmc/server.properties

I can change this, but we cannot change easily existing installations.

@h3o66 commented on GitHub (May 26, 2024): this was not fixed yet. Does someone know what version does change this ? ref to the config what is used: https://github.com/GameServerManagers/Game-Server-Configs/blob/main/pmc/server.properties I can change this, but we cannot change easily existing installations.

kerem commented

2026-02-27 03:05:22 +03:00

Author

Owner

@h3o66 commented on GitHub (May 26, 2024):

should be fixed now with NEW installations at least:
github.com/GameServerManagers/Game-Server-Configs@aed9c46837

@h3o66 commented on GitHub (May 26, 2024): should be fixed now with NEW installations at least: https://github.com/GameServerManagers/Game-Server-Configs/commit/aed9c46837540dfec588ec3abf91d0420321eb82

kerem referenced this issue

2026-02-27 03:55:48 +03:00

[PR #2774] [MERGED] Hotfix v20.1.4 #3783