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/help command seems to generate errors, unsure whats doing it.

Posted January 12, 201411 yr

Whenever I try to use the 'help' command, I get an error stating 'An unknown error occurred while attempting to perform this command'. I have been pruning the mods mentioned in the console when this error pops up, but I'm still getting this error, and now there doesn't seem to be any source that I can discern.

Console output

2014-01-12 15:45:57 [iNFO] [sTDERR] java.lang.IllegalArgumentException: Comparison method violates its general contract!

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.ComparableTimSort.mergeLo(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.ComparableTimSort.mergeAt(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.ComparableTimSort.mergeCollapse(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.ComparableTimSort.sort(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.Arrays.sort(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at java.util.Collections.sort(Unknown Source)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.command.CommandHelp.func_71534_d(SourceFile:74)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.command.CommandHelp.func_71515_b(SourceFile:36)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:88)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.func_72566_d(NetServerHandler.java:759)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.func_72481_a(NetServerHandler.java:728)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.packet.Packet3Chat.func_73279_a(SourceFile:49)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:141)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:54)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServerListenThread.func_71747_b(IntegratedServerListenThread.java:109)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:691)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)

2014-01-12 15:45:57 [iNFO] [sTDERR] at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)

2014-01-12 15:45:57 [iNFO] [Minecraft-Client] [CHAT] An unknown error occurred while attempting to perform this command

ForgeModLoader-client0.log dropbox link - https://dl.dropboxusercontent.com/u/19887338/ForgeModLoader-client-0.log

Quote

January 14, 201411 yr

Use another version of Forge.

Quote

January 14, 201411 yr

This is caused by one of the mods you have installed, messing up the sort function.

Try removing mods and see if you can track it down.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

Quote

2 weeks later...

January 25, 201411 yr

Author

This is caused by one of the mods you have installed, messing up the sort function.

Try removing mods and see if you can track it down.

I was able to remove the offending mods over time, but the biggest issue I ran into was that it seemed to be inconsistent, like I would load up my world once and it would work, then when I loaded again I got the error.

Is there any reason it would behave like this?

Quote

January 25, 201411 yr

No clue, modders do weird things.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

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Hey dawg!

I think I might be able to help you out with your issue here. I say might because I don't know about 1.16.x or any later version, but I know how to do this kind of thing for 1.12.2 forge. Basically, in the pre-init or init (I don't really remember which one) you just gotta'

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When the game is deciding whether or not to spawn an entity, if the entity is registered with the SpawnPlacements class, is uses the function you specify in the entity class to determine whether or not the entity can spawn in a certain spot. For example, the guardian cannot spawn on a block that is exposed to light from underwater because of this function. So what you could do is make a checkSelfSpawnRules function for your mob and register it with the SpawnPlacements function. Then, you could have your checkSelfSpawnRules function take into account if the block it's trying to spawn on is near a Pillager Outpost. Finally, you can get the coordinates to the chunk of your block and iterate through the ServerLevels in your MinecraftServer class and get their chunk sources and test if the chunk source has the chunk of your block position. If it does, you can then get the StructureManager from the ServerLevel. In there should be some very helpful functions for you to use. Although this is a bit more orthodox, it might be a bit laggy.

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/help command seems to generate errors, unsure whats doing it.

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[1.20.1] Custom Effect Help

(IntelliJ) Gradle doesn't import enums from net.minecraft.core properly

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