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?

I'm having the same problems as OP. Only mods that are enabled is this mod and its pre-requirements. So Harmony and Pandora's Framework. All Dlcs except Odyssey. Did a fresh install, cleared out the config file. And if what Littleman said is true, you may have unknowingly made Odyssey a requirement. So you may need to test if removing Odyssey causes problems.

I can confirm, the mod doesn't work for me either - with no other mods but prerequisites installed - and I am only missing the last two DLCs so one of those - probably Odyssey - or some other unlisted prereq is probably the cause for people getting this error.

Okay did some testing. The errors for "Low Tech Crate" and shuttle.av disappears when Odyssey is loaded. And the scenario error is gone when Vanilla Expanded Framework is loaded.