@ Borhap
I had the same problem some time ago, when I still edited XML files with just plain notepad. That convinced me to switching to Notepad++, which solved the issue.
You should delete the file you edited (also if you have reverted the changes) and download the file again. Then, make the changes with Notepad++. (This worked for me)
I guess the problem is connected to the saving of the file with the text editor you (and I when I had the problem) used.



It works!!! Thank you!!!