I created a simple tmLanguage file in the Java folder. I closed sublime, moved it to its own package, and now I get this error every time on startup:

Error loading syntax file “Packages/Java/proto.tmLanguage”: Error parsing plist xml: Failed to open file In file “Packages/Java/proto.tmLanguage”

Same error if I delete on of the syntax files too. I think I need to manually choose that syntax for a file first, then delete/move the language file and I get that.

I think it was because I manually chose a syntax for 1 file when I had the .tmLanguage file in one folder. Then I moved it and sublime had saved the preference. I just chose a different syntax for that one file and the error finally went away.