[A13]I don't know what happened

[topp2000]

1.There are more than twenty days in the game.
2.Throw a large number of errors.
3.Hope to find out the reason and repair.
4.I don't know.

log:
System.ArgumentNullException: Argument cannot be null.

Parameter name: source

  at System.Linq.Check.SourceAndPredicate (System.Object source, System.Object predicate) [0x00000] in <filename unknown>:0

  at System.Linq.Enumerable.Where[PawnGroupMaker] (IEnumerable`1 source, System.Func`2 predicate) [0x00000] in <filename unknown>:0

  at RimWorld.PawnGroupMakerUtility+<GenerateArrivingPawns>c__IteratorAE.MoveNext () [0x00000] in <filename unknown>:0

  at System.Collections.Generic.List`1[Verse.Pawn].AddEnumerable (IEnumerable`1 enumerable) [0x00000] in <filename unknown>:0

  at System.Collections.Generic.List`1[Verse.Pawn]..ctor (IEnumerable`1 collection) [0x00000] in <filename unknown>:0

  at System.Linq.Enumerable.ToList[Pawn] (IEnumerable`1 source) [0x00000] in <filename unknown>:0

  at RimWorld.IncidentWorker_NeutralGroup.SpawnPawns (RimWorld.IncidentParms parms) [0x00000] in <filename unknown>:0

  at RimWorld.IncidentWorker_VisitorGroup.TryExecute (RimWorld.IncidentParms parms) [0x00000] in <filename unknown>:0

  at RimWorld.IncidentQueue.IncidentQueueTick () [0x00000] in <filename unknown>:0

  at RimWorld.Storyteller.StorytellerTick () [0x00000] in <filename unknown>:0

  at Verse.TickManager.DoSingleTick () [0x00000] in <filename unknown>:0

(Filename: C:/buildslave/unity/build/artifacts/StandalonePlayerGenerated/UnityEngineDebug.cpp Line: 56)


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[Acruid]

A VisitorGroup Incident happened, but the utility to make a group of pawns threw an error because faction.def.pawnGroupMakers is null. So it is trying to spawn a group of faction members that do not have <pawnGroupMakers> defined in the xml, or an error when loading it prevented it from being deserialized.

Look through your mods for one that has xml files in ./Defs/FactionDefs/, that will probably be the culprit.

[topp2000]

In addition to core, including factiondefs only GlitterTech and MoreMechanoids, but I have not enabled

[Acruid]

More Mechanoids does not look like it has been updated, and the a12d version is not compatible with a13.

[topp2000]

Yeah, but I didn't enable it.

[ison]

Most likely caused by mods. One of the mods probably defines a FactionDef with null pawnGroupMakers.

[milon]

topp, I just saw this thread and moved it into our new Mod Bugs forum.  Are you still experiencing problems?  If so, this is the place for us to help you solve it. 

[Haplo]

This is the same error that my first version of Miscellaneous Incident created.
In there I created the normal Visitor event, but if you where unlucky the faction defined for them was the Colony faction.
This created the Null-Reference exception exactly like that. It prevented the Storyteller to do ANY incidents, as it always bugged out at this bad incident.
But.. I don't see Misc incidents in the modlist, so..

If you had Misc Incidents in your list, please redownload the newest version and start a new colony.