readme doesn't say it's not supported on pdflatex

[Kreijstal]

if you run it on pdflatex you get ! Critical Package emoji Error: The 'emoji' package requires LuaTeX.

[henningpohl]

Weird, it works with my pdflatex install. Could you post more of the error message?

[Kreijstal]

Alright, so I redownloaded, your package again with git clone and went to compile example.tex with pdflatex, this is what I get

! Package inputenc Error: Unicode character ⏩ (U+23E9)
(inputenc)                not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.44 ... instead. For example, the line ``\dogline
                                                  '' does not contain the \v...

[henningpohl]

Ah, I see. It looks like something changed in inputenc or somewhere else and the registering of emoji characters is now broken. The \emoji command should still work, but you'd need to enter the corresponding number instead of writing the character directly. Registering characters does seem to work with newunicodechar, so maybe add that to your document if you need that functionality. I don't think I can find the time right now to change this package to make emoji via character work.