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Colony Manger has something that works like that

i think it might be export agency an error for that mod shows up multiple times in the output log below is the error

Exception from asynchronous event: System.ArgumentNullException: Argument cannot be null.
Parameter name: source
at System.Linq.Check.Source (object) <0x00061>
at System.Linq.Enumerable.First<ExportAgency.ExposableListItem`1<Verse.IExposable>> (System.Collections.Generic.IEnumerable`1<ExportAgency.ExposableListItem`1<Verse.IExposable>>) <0x0002c>
at ExportAgency.ExportAgency.OutfitDatabasePostfix (RimWorld.OutfitDatabase) <0x00132>
at (wrapper dynamic-method) RimWorld.OutfitDatabase..ctor_Patch1 (object) <0x00075>
at Verse.Game..ctor () <0x00375>
at Verse.GameDataSaveLoader/<LoadGame>c__AnonStorey2.<>m__0 () <0x00052>
at Verse.LongEventHandler.RunEventFromAnotherThread (System.Action) <0x00042>

I was also experiencing this problem. I was able to determine that it was a problem with a mod i had active. I disabled the mod and i was able to load a world just fine. I would suggest tinkering with your mods. 

There is already a mod for that does this http://steamcommunity.com/sharedfiles/filedetails/?id=938860383