You're trying to install a very old version of the software that doesn't work with current versions of Inkscape.
Since we've had several other inquiries about 2.4.0 recently, I'm guessing that you're following directions provided by an off-brand EggBot clone maker, who doesn't actually test things on Macs.
> On Mar 14, 2017, at 5:30 AM, William Nash <wen...@gmail.com
> I am having trouble installing EggBot v2.4.0 for mac OS.
Windell H. Oskay, Ph.D.
Co-Founder and Chief Scientist
Evil Mad Scientist Laboratories
175 San Lazaro Ave, STE 150
Sunnyvale CA 94086