I’ve done this like 50 times before with no incident… The only thing different that I can think of is that I made the model, except I tried a model from thingiverse that has previously worked and I get the same error… I’m not sure what to do.
The error is pictured below… Or above, or to the side… I’m not sure
I’m using a Flashforge Creator Pro with a Mac on simplify3d
We get this on the Mac every few weeks. Might be the same issue. We just force stop s3d and if the problem persists (uhg) restart the Mac. (40% of Mac restarts seem to result in a full reinstall, not impressed with their os) This also seems to happen with full or damaged sd cards.
You need this support software for GPX to x3g Conversion under thing files when you get to the link download appropriate file for MAC in your case will be OSX.