I've been stuck on this one line for 30+ minutes now.

 

EntityRegistry.addSpawn(EntityMoa.class, 10, 1, 6, EnumCreatureType.CREATURE, BiomeDictionary.getBiomes(BiomeDictionary.Type.PLAINS));

 

I am making new mob called the Moa and I have two issues with this line.  I am apparently supposed to put getBiomeForType instead of getBiomes but It says it's wrong and I either have to put getBiomeInfo which ends up being wrong also. When I put getBiomes, then addSpawn becomes wrong with the error:

The method addSpawn(Class<? extends EntityLiving>, int, int, int, EnumCreatureType, Biome...) in the type

EntityRegistry is not applicable for the arguments (Class<EntityMoa>, int, int, int, EnumCreatureType, Set<Biome>).

I'm about to rip my head off, can someone please help???

The error message is pretty self-explanatory. Set<Biome> is not a Biome array and can't be cast to one.  BiomeDictionary::getBiomes returns a Set<Biome> and you need a Biome[].

 

As for your first issue you should look here:

 

Edited May 2, 20178 yr by V0idWa1k3r
Added some more information