Type KCSG.SymbolDef is not a Def type or could not be found, in file LayoutDef_StarterBase.xml. Context: <KCSG.SymbolDef><defName>Doberkin_Intercontinental_AV</defName><thing>Doberkin_Intercontinental_AV</thing><rotation>East</rotation></KCSG.SymbolDef>
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
Verse.Log:ErrorOnce (string,int)
Verse.DirectXmlToObjectNew:DefFromNodeNew (System.Xml.XmlNode,Verse.LoadableXmlAsset)
Verse.LoadedModManager:ParseAndProcessXML (System.Xml.XmlDocument,System.Collections.Generic.Dictionary`2<System.Xml.XmlNode, Verse.LoadableXmlAsset>,bool)
Verse.LoadedModManager:LoadAllActiveMods (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__10_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__28_0 ()
System.Threading.ThreadHelper:ThreadStart_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.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
System.Threading.ThreadHelper:ThreadStart ()

XML error: Could not find parent node named "LowTechCrateBase" for node "ThingDef". Full node: <ThingDef ParentName="LowTechCrateBase"><defName>Pallet_DoberkinRation</defName><label>ration pallet</label><description>A pallet containing loads of doberkin rations. It appears to have been brought recently.</description><size>(2, 2)</size><fillPercent>0.3</fillPercent><graphicData><texPath>Things/Buildings/RationCrate/Doberkin_RationCrate</texPath><graphicClass>Graphic_Single</graphicClass><drawSize>(2,2)</drawSize></graphicData><statBases><MaxHitPoints>100</MaxHitPoints></statBases><rotatable>false</rotatable><comps><li Class="CompProperties_EmptyStateGraphic"><graphicData><texPath>Things/Buildings/RationCrate/Crate_Empty</texPath><graphicClass>Graphic_Single</graphicClass><drawSize>(2,2)</drawSize></graphicData></li><li Class="CompProperties_LootSpawn"><contents>Reward_Pallet_DKRation</contents></li></comps></ThingDef>
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
Verse.XmlInheritance:GetBestParentFor (Verse.XmlInheritance/XmlInheritanceNode,string)
Verse.XmlInheritance:ResolveParentsAndChildNodesLinks ()
Verse.XmlInheritance:Resolve ()
Verse.LoadedModManager:ParseAndProcessXML (System.Xml.XmlDocument,System.Collections.Generic.Dictionary`2<System.Xml.XmlNode, Verse.LoadableXmlAsset>,bool)
Verse.LoadedModManager:LoadAllActiveMods (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__10_1 ()
Verse.LongEventHandler:RunEventFromAnotherThread (System.Action)
Verse.LongEventHandler/<>c:<UpdateCurrentAsynchronousEvent>b__28_0 ()
System.Threading.ThreadHelper:ThreadStart_Context (object)
System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)

Not quite sure which of these errors are actually important or not, just sending anything in red.

Could not resolve cross-reference: No RimWorld.AbilityGroupDef named Leader found to give to RimWorld.AbilityDef Doberkin_AlphaHowl
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
Verse.DirectXmlCrossRefLoader/WantedRefForObject:TryResolve (Verse.FailMode)
Verse.DirectXmlCrossRefLoader/<>c__DisplayClass16_0:<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 ()

Could not resolve cross-reference: No Verse.ThingDef named Mote_CombatCommandLinkLine found to give to Verse.HediffCompProperties_Link Verse.HediffCompProperties_Link
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
Verse.DirectXmlCrossRefLoader/WantedRefForObject:TryResolve (Verse.FailMode)
Verse.DirectXmlCrossRefLoader/<>c__DisplayClass16_0:<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 ()

Could not resolve cross-reference to Verse.ThingDef named StoneskinGland (wanter=techHediffsRequired)
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
Verse.DirectXmlCrossRefLoader:TryResolveDef<Verse.ThingDef> (string,Verse.FailMode,object)
Verse.DirectXmlCrossRefLoader/WantedRefForList`1<Verse.ThingDef>:TryResolve (Verse.FailMode)
Verse.DirectXmlCrossRefLoader/<>c__DisplayClass16_0:<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 ()

Ah yeah, it's the same issue as the last guy, about the custom prefab base gen that VEF has, I highly advise that you forward this to the VE team cause I only no the basics on how that code works, and yeah it's probably a mod conflict since I have never encountered this issue at all, it's functioning alright on my end.

Damn, that's unfortunate, I had turned off every single mod other than this one to test. I'll look into it on my side.

Just a quick question, but do you have Odyssey installed? Because I think I was having the same problem you were until I bought and installed that

Yeah, what about it?