I followed krangpow's directions and it worked for me.
Did you update the .json to update references to .17 instead of .16? Maybe that's the glitch.
EDIT: Oh, Also, when you do the edits, make sure you start at the bottom of the list, or when you remove lines, the numbers will change. So, start with "modify line 344" then work your way up the list of edits. :)