+1  A: 

Judging by the position of the error, and assuming you simply copy/pasted the XML from the example, you may be missing the XML declaration which should be on the first line of each XML file for it to be considered well-formed:

<?xml version="1.0" encoding="UTF-8"?>

Alternatively, you could try a clean build of the project to see if the error goes away

chrisbunney
Hi Chris!Thanks for your answer!! And you were right! I found the solution before I read your comment. The only thing that I had to do was a clean build and after that, it worked! So...if somebody has this problem...please go to Project/Clean and that's allBtw, you were right and I didn't add the XML declaration either. I didn't know about that. Thanks for the suggestion too!
arakn0