System.InvalidOperationException: Collection was modified; enumeration operation may not execute.
  at System.ThrowHelper.ThrowInvalidOperationException (System.ExceptionResource resource) [0x0000b] in <eae584ce26bc40229c1b1aa476bfa589>:0
  at System.Collections.Generic.List`1+Enumerator[T].MoveNextRare () [0x00013] in <eae584ce26bc40229c1b1aa476bfa589>:0
  at System.Collections.Generic.List`1+Enumerator[T].MoveNext () [0x0004a] in <eae584ce26bc40229c1b1aa476bfa589>:0
  at System.Linq.Enumerable+WhereListIterator`1[TSource].MoveNext () [0x0004e] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.Enumerable+SelectManySingleSelectorIterator`2[TSource,TResult].MoveNext () [0x00038] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.Enumerable+SelectManySingleSelectorIterator`2[TSource,TResult].MoveNext () [0x0006f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.Enumerable+WhereEnumerableIterator`1[TSource].MoveNext () [0x0004e] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.Enumerable+DistinctIterator`1[TSource].MoveNext () [0x0009a] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at LifeSupport.LifeSupportComp.ReceiveCompSignal (System.String signal) [0x0009d] in <6a579a8b96a741449b7fb78af26817a4>:0
  at Verse.ThingWithComps.BroadcastCompSignal (System.String signal) [0x0002b] in <cd7169108ea74757aa50c5b33d275c15>:0
  at RimWorld.CompPowerTrader.set_PowerOn (System.Boolean value) [0x000fd] in <cd7169108ea74757aa50c5b33d275c15>:0
  at RimWorld.PowerNet.PowerNetTick () [0x00238] in <cd7169108ea74757aa50c5b33d275c15>:0
  at RimWorld.PowerNetManager.PowerNetsTick () [0x00010] in <cd7169108ea74757aa50c5b33d275c15>:0
  at Verse.Map.MapPostTick () [0x00034] in <cd7169108ea74757aa50c5b33d275c15>:0
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) Verse.Log:Verse.Log.Error_Patch3 (string)
Verse.Map:MapPostTick ()
(wrapper dynamic-method) Verse.TickManager:Verse.TickManager.DoSingleTick_Patch2 (Verse.TickManager)
Verse.TickManager:TickManagerUpdate ()
(wrapper dynamic-method) Verse.Game:Verse.Game.UpdatePlay_Patch1 (Verse.Game)
Verse.Root_Play:Update ()