After using the summoning attack item, I received this error message:
Faction 艾菲娅瑟尔 of def Chaoura_Faction_NPC_b has no usable PawnGroupMakers for parms groupKind=Combat, tile=16617, inhabitants=False, points=Infinity, faction=艾菲娅瑟尔, ideo=, traderKind=, generateFightersOnly=False, dontUseSingleUseRocketLaunchers=False, raidStrategy=ImmediateAttack, forceOneDowned=False, seed=, raidAgeRestriction=
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch5 (string)
RimWorld.PawnGroupMakerUtility/<GeneratePawns>d__2:MoveNext ()
System.Collections.Generic.List`1<Verse.Pawn>:.ctor (System.Collections.Generic.IEnumerable`1<Verse.Pawn>)
System.Linq.Enumerable:ToList<Verse.Pawn> (System.Collections.Generic.IEnumerable`1<Verse.Pawn>)
Chaoura_UB.HAR_CO_UB_IncidentWorker_a:ResolveRaid (Verse.Map,RimWorld.IncidentParms,System.Collections.Generic.List`1<Verse.Pawn>&)
Chaoura_UB.HAR_CO_UB_IncidentWorker_a:TryExecuteWorker (RimWorld.IncidentParms)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:RimWorld.IncidentWorker.TryExecute_Patch3 (RimWorld.IncidentWorker,RimWorld.IncidentParms)
Chaoura_UB.HAR_CO_UB_Comp_Archotech_Incident:DoEffectOn (Verse.Pawn,Verse.Thing)
RimWorld.CompTargetable:DoEffect (Verse.Pawn)
RimWorld.CompUsable:UsedBy (Verse.Pawn)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:RimWorld.JobDriver_UseItem+c__DisplayClass7_0.<Use>b__0_Patch0 (RimWorld.JobDriver_UseItem/<>c__DisplayClass7_0)
Verse.AI.JobDriver:TryActuallyStartNextToil ()
Verse.AI.JobDriver:ReadyForNextToil ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.AI.JobDriver.DriverTick_Patch0 (Verse.AI.JobDriver)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.AI.Pawn_JobTracker.JobTrackerTick_Patch0 (Verse.AI.Pawn_JobTracker)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Pawn.Tick_Patch2 (Verse.Pawn)
Verse.TickList:Tick ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.TickManager.DoSingleTick_Patch4 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Game.UpdatePlay_Patch2 (Verse.Game)
Verse.Root_Play:Update ()