I think I find the reason, this hive def file doesn't have CompSpawnerHives defined, add this comp to the xml file will solve the problem

Exception in RimWorld.ThinkNode_ConditionalBodySize TryIssueJobPackage: System.NullReferenceException: Object reference not set to an instance of an object
[Ref 66804895]
at RimWorld.ThinkNode_ConditionalHiveCanReproduce.Satisfied (Verse.Pawn pawn) [0x00024] in <f0ac5eb9b52e4cc396c70fc9a4ee15e5>:0
My mod list has 400+ mods, when the meteorite crashes my settlement , this error keeps spamming,
but it only show when the spawned monsters try to interact with the meteorite.

good

err

Could you fix the error?

Failed to find Verse.JobDef named CSS_Jobs_CastSummon. There are 207 defs of this type loaded.

maybe some bug

Failed to find Verse.JobDef named CSS_Jobs_CastSummon. There are 207 defs of this type loaded.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.DefDatabase`1<Verse.JobDef>:GetNamed (string,bool)
System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
System.Reflection.MethodBase:Invoke (object,object[])
Verse.GenGeneric:InvokeStaticMethodOnGenericType (System.Type,System.Type,string,object[])
Verse.GenDefDatabase:GetDef (System.Type,string,bool)
RimWorld.DefOfHelper:BindDefsFor (System.Type)
RimWorld.DefOfHelper:RebindAllDefOfs (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_1 ()

Imagine having this with What The Hack

ive got some problems, but its very good at all

CE compatible?

wow, It's very good guy