Those aren't errors, they are warnings (at least inside of the VS IDE) and shouldnt prevent your application from compiling. Normally this means that some of your HTML is out of order which normally happens when you forget a closing tag. Double check that all of your tags are there and in the correct order.
--Stole this from a moderator
I will only tell you how to do it, not do it for you.
Unless, of course, you want to hire me to do work for you.