How much programming of PICs have you done in your new world?
Have you made a blinky LED yet or anything of the sort? If not, I'd highly suggest building a few simpler 'things' and build up.
The WARNINGs are just that, warnings, and not errors, and generally don't matter much, in this case, they don't mean much.
The last line in the 2nd file...BUILD SUCCEEDED...that's what matters.