I was recently going over the CustomView tutorial on developers.android.com, and while I was adapting the code to my own project, I noticed that although the errors were marked, line-by-line in the class editor, they were going entirely undetected by lint.
So far, I've tried this & an article that suggested I simply "Save Perspective As..." and restart Eclipse.
I imagine this is an easy-to-fix problem, that I may have unknowingly caused, myself... Because errors in other projects show up in Lint just fine.
Perhaps I need to find the lint.xml as described in this question-?- Any idea where that may be?