Could not resolve cross-reference to Verse.ResearchProjectDef named VWE_Gunpowder (wanter=researchPrerequisites)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch5 (string)
Verse.DirectXmlCrossRefLoader:TryResolveDef<Verse.ResearchProjectDef> (string,Verse.FailMode,object)
Verse.DirectXmlCrossRefLoader/WantedRefForList`1<Verse.ResearchProjectDef>:TryResolve (Verse.FailMode)
Verse.DirectXmlCrossRefLoader/<>c__DisplayClass16_1:<ResolveAllWantedCrossReferences>b__0 (Verse.DirectXmlCrossRefLoader/WantedRef)
Verse.GenThreading/<>c__DisplayClass7_1`1<Verse.DirectXmlCrossRefLoader/WantedRef>:<ParallelForEach>b__0 (object)
System.Threading.QueueUserWorkItemCallback:WaitCallback_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
System.Threading.QueueUserWorkItemCallback:System.Threading.IThreadPoolWorkItem.ExecuteWorkItem ()
System.Threading.ThreadPoolWorkQueue:Dispatch ()
System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()