I got an error also about case sensitivity.

Attempt to use string SupportedVersions to refer to field supportedVersions in type Verse.ModMetaData+ModMetaDataInternal; xml tags are now case-sensitive. XML: <ModMetaData><name>RimTaser [1.0]</name><author>Snake</author><url>https://steamhost.cn/steamcommunity_com/id/123456918230/</url><SupportedVersions><li>1.0</li></SupportedVersions><description>[RimTaser] [1.0]
A mod that adds a X2 based Taser to the universe of Rimworld! Tired of accidently killing opponents you want to capture? Or tired of the mental breakdowns? Then this is the for you!

- 8 Tile radius;
- Realistic (Tasers don't always work IRL either ¯\_(ツ)_/¯ );
- Increased chance of vomitting after being tazed;
- Safe way of arresting other pawns;
- Craftable!
</description></ModMetaData>
Verse.Log:Error(String, Boolean)
Verse.DirectXmlToObject:GetFieldInfoForType(Type, String, XmlNode)
Verse.DirectXmlToObject:ObjectFromXml(XmlNode, Boolean)
Verse.DirectXmlLoader:ItemFromXmlFile(String, Boolean)
Verse.ModMetaData:Init()
Verse.ModMetaData:.ctor(WorkshopItem)
Verse.ModLister:RebuildModList()
Verse.Steam.WorkshopItems:RebuildItemsList()
Verse.Steam.WorkshopItems:.cctor()
Verse.ModLister:RebuildModList()
Verse.ModLister:RebuildModList()
Verse.ModLister:.cctor()
Verse.<>c__Iterator0:MoveNext()
Verse.<>c__Iterator0:MoveNext()
System.Collections.Generic.List`1:AddEnumerable(IEnumerable`1)
System.Collections.Generic.List`1:.ctor(IEnumerable`1)
System.Linq.Enumerable:ToList(IEnumerable`1)
Verse.LoadedModManager:InitializeMods()
Verse.LoadedModManager:LoadAllActiveMods()
Verse.PlayDataLoader:DoPlayLoad()
Verse.PlayDataLoader:LoadAllPlayData(Boolean)
Verse.Root:<Start>m__1()
Verse.LongEventHandler:RunEventFromAnotherThread(Action)
Verse.LongEventHandler:<UpdateCurrentAsynchronousEvent>m__1()

It's not a problem.