So today I receive a report of a crash caused by one of my mods. The report shows:

 

java.lang.NoSuchMethodError: net.minecraft.entity.monster.EntityGuardian.func_175465_cm()V
    at com.mramericanmike.irishluck.outputs.SpawnMobs.init(SpawnMobs.java:164)
    at com.mramericanmike.irishluck.blocks.BlockIrishLuck.removedByPlayer(BlockIrishLuck.java:172)
    at net.minecraft.server.management.PlayerInteractionManager.removeBlock(PlayerInteractionManager.java:275)
    at net.minecraft.server.management.PlayerInteractionManager.func_180237_b(PlayerInteractionManager.java:333)

 

Hoever on my code the method called is:

 

entityX1 = new EntityGuardian(world);
((EntityGuardian) entityX1).setElder();
Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());
world.spawnEntityInWorld(entityX1);	

 

What could be happening here?

 

Did you by chance run your mod on 1.11? In 1.11 they refactored a lot of entity classes into multiple, e.g. zombie villagers became their own class and also elder guardians. As such there is no setElder method anymore, elder guardians use a different entity class.

 

I have made an update for 1.11 and 1.11.2 in there I'm using:

 

entityX1 = new EntityElderGuardian(world);Stuff.setEntityPos(entityX1, pos.getX(), pos.getY(), pos.getZ());world.spawnEntityInWorld(entityX1);

 

So yes there the Elder Guardian is on his own class.

 

I got that report from someone playing on a server, so I assume they were using the right version of the mod. I will try to reproduce it and see what was going on.

So, whenever I try it on Single Player, everything is perfect and the Elder Guardian Spawn.

 

Whenever I try on a server, the console shows:

 

[13:12:39] [server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError: net.minecraft.entity.monster.EntityGuardian.setElder()V
at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_111]
at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_111]
at net.minecraft.util.Util.runTask(Util.java:26) [util.class:?]
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:742) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:408) [DedicatedServer.class:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:687) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:536) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.NoSuchMethodError: net.minecraft.entity.monster.EntityGuardian.setElder()V
at com.mramericanmike.irishluck.outputs.SpawnMobs.init(SpawnMobs.java:164) ~[spawnMobs.class:?]
at com.mramericanmike.irishluck.blocks.BlockIrishLuck.removedByPlayer(BlockIrishLuck.java:172) ~[blockIrishLuck.class:?]

 

Don't know what can be causing this.

Don't know what can be causing this.

 

SpawnMobs line 164:

 

Caused by: java.lang.NoSuchMethodError: net.minecraft.entity.monster.EntityGuardian.setElder()V

at com.mramericanmike.irishluck.outputs.SpawnMobs.init(SpawnMobs.java:164) ~[spawnMobs.class:?]

Don't know what can be causing this.

 

SpawnMobs line 164:

 

Caused by: java.lang.NoSuchMethodError: net.minecraft.entity.monster.EntityGuardian.setElder()V

at com.mramericanmike.irishluck.outputs.SpawnMobs.init(SpawnMobs.java:164) ~[spawnMobs.class:?]

 

Thanks you. So I was using a method that exists only Client Side when I should have been using the EntityGuardian.setElder(true) ?