I was able to do a manual install following the instructions for the pre-release version of EggBot, but the Mac DMG (release version) fails with Sierra and Inkscape 0.91 and later.
The current release version of Inkscape is 0.91– if you’re using a pre-release version of Inkscape (especially one so far ahead as 0.95) that might explain the issue.
I’m having the same issue – runninng Inkscape .91 on Sierra 10.12.3 and when I try to install from the eggbot dmg (latest), I get the same screen saying it can’t install to the hard drive that Inkscape is installed on.
I’m trying to get it working for my kids for easter so I’m motivated to interactively troubleshoot if someone can help.
Thanks, that worked. The site I was linking in from took me to the 2.4.0 version and I didn’t dig deeper to realize that wasn’t the latest when it didn’t work. I appreciate the quick support!