Illegal Character error: '\u200b'

I think the point here is to not retype the copied code. So with that in mind:

Steps:

1- Ctrl + r Replace (tick Regex checkbox)

2- paste the character code: \u200b

3- replace all with nothing

Done!

\u200b is a "zero-width-space" in Unicode.

You should delete line 12 (the blank line), save the file, re-add the blank line and save again. using a simple text editor.

If that doesn't fix it delete lines 11 and 13 as well and recreate them.