I'm having trouble making mods

[鱼鱼将]

I don't understand these bugs, and I don't know how to fix bugs

Error 1:
Unexpected document element in patch XML; got Operation, expected 'Patch'
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.ModContentPack:LoadPatches ()
Verse.ModContentPack:get_Patches ()
Verse.LoadedModManager:ErrorCheckPatches ()
Verse.LoadedModManager:LoadAllActiveMods (bool)
Verse.PlayDataLoader:DoPlayLoad ()
Verse.PlayDataLoader:LoadAllPlayData (bool)
Verse.Root/<>c:<Start>b__6_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 ()

Error 2:
Could not find a type named CookMealSoupBulk
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.ParseHelper:ParseType (string)
Verse.ParseHelper:FromString<System.Type> (string)
Verse.DirectXmlToObject:ObjectFromXml<System.Type> (System.Xml.XmlNode,bool)
Verse.DirectXmlToObject:ListFromXml<System.Type> (System.Xml.XmlNode)
Verse.DirectXmlToObject:ListFromXmlReflection<System.Type> (System.Xml.XmlNode)
Verse.DirectXmlToObject:ObjectFromXml<System.Collections.Generic.List`1<System.Type>> (System.Xml.XmlNode,bool)
Verse.DirectXmlToObject:ObjectFromXmlReflection<System.Collections.Generic.List`1<System.Type>> (System.Xml.XmlNode,bool)
Verse.DirectXmlToObject:ObjectFromXml<Verse.ThingDef> (System.Xml.XmlNode,bool)
Verse.DirectXmlToObject:ObjectFromXmlReflection<Verse.ThingDef> (System.Xml.XmlNode,bool)
Verse.DirectXmlLoader:DefFromNode (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__6_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 ()

Error 3:
Config error in MealSoup: undefined preferability
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
Verse.DefDatabase`1<Verse.BuildableDef>:ErrorCheckAllDefs ()
System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
System.Reflection.MethodBase:Invoke (object,object[])
Verse.GenGeneric:InvokeStaticMethodOnGenericType (System.Type,System.Type,string)
Verse.PlayDataLoader/<>c:<DoPlayLoad>b__4_1 (System.Type)
System.Threading.Tasks.Parallel/<>c__DisplayClass31_0`2<System.Type, object>:<ForEachWorker>b__0 (int)
System.Threading.Tasks.Parallel/<>c__DisplayClass17_0`1<object>:<ForWorker>b__1 ()
System.Threading.Tasks.Task:InnerInvoke ()
System.Threading.Tasks.Task:InnerInvokeWithArg (System.Threading.Tasks.Task)
System.Threading.Tasks.Task/<>c__DisplayClass178_0:<ExecuteSelfReplicating>b__0 (object)
System.Threading.Tasks.Task:InnerInvoke ()
System.Threading.Tasks.Task:Execute ()
System.Threading.Tasks.Task:ExecutionContextCallback (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.Tasks.Task:ExecuteWithThreadLocal (System.Threading.Tasks.Task&)
System.Threading.Tasks.Task:ExecuteEntry (bool)
System.Threading.Tasks.Task:System.Threading.IThreadPoolWorkItem.ExecuteWorkItem ()
System.Threading.ThreadPoolWorkQueue:Dispatch ()
System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()

Error 4:
Root level exception in OnGUI(): System.ArgumentNullException: Value cannot be null.
Parameter name: type
[Ref B30113CA]
 at System.Activator.CreateInstance (System.Type type, System.Boolean nonPublic) [0x00003] in <eae584ce26bc40229c1b1aa476bfa589>:0
 at System.Activator.CreateInstance (System.Type type) [0x00000] in <eae584ce26bc40229c1b1aa476bfa589>:0
 at Verse.BuildableDef.get_PlaceWorkers () [0x00033] in <407df8b6624a4007bd066380b57639c7>:0
 at RimWorld.Designator_Build.get_Visible () [0x000a7] in <407df8b6624a4007bd066380b57639c7>:0
 at Verse.GizmoGridDrawer.DrawGizmoGrid (System.Collections.Generic.IEnumerable`1[T] gizmos, System.Single startX, Verse.Gizmo& mouseoverGizmo, System.Func`2[T,TResult] customActivatorFunc, System.Func`2[T,TResult] highlightFunc, System.Func`2[T,TResult] lowlightFunc, System.Boolean multipleSelected) [0x0041d] in <407df8b6624a4007bd066380b57639c7>:0
 at RimWorld.ArchitectCategoryTab.DesignationTabOnGUI (Verse.Designator forceActivatedCommand) [0x0007a] in <407df8b6624a4007bd066380b57639c7>:0
 at RimWorld.MainTabWindow_Architect.ExtraOnGUI () [0x00010] in <407df8b6624a4007bd066380b57639c7>:0
 at Verse.WindowStack.WindowStackOnGUI () [0x00038] in <407df8b6624a4007bd066380b57639c7>:0
 at RimWorld.UIRoot_Play.UIRootOnGUI () [0x00079] in <407df8b6624a4007bd066380b57639c7>:0
 at Verse.Root.OnGUI () [0x00046] in <407df8b6624a4007bd066380b57639c7>:0
     - POSTFIX UnlimitedHugs.HugsLib: Void HugsLib.Patches.Root_OnGUI_Patch:OnGUIHookUnfiltered()
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Verse.Log:Error (string)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root.OnGUI_Patch1 (Verse.Root)

I'm a newbie and I don't know how to fix these bugs