B18 Tags are now case sensitive error

[Jibbles]

"Attempt to use string Description to refer to field description in type Verse.ThingDef; xml tags are now case-sensitive."

I come across a lot of errors similar to this with the new update for my mods.  What should I be looking for to fix these?

EDIT: I always thought things were case sensitive. It makes me think that I use <Description> and it should be changed to <description> but this is how it is my xml. Am I overlooking something or did I misunderstood this error?

[dburgdorf]

The error means exactly what you think it means. In a17 and before, XML tags weren't case sensitive, so you could use either <description> (correct) or <Description> (incorrect). But now, though, incorrect capitalization throws up error messages.

Fix the tags so they're capitalized correctly, and the errors will vanish.

[Jibbles]

Thanks for the reassurance.  Got an editor that can search for case sensitive words now and seems that I have missed some.