Here's a post from someone who had that same issue with another RPG Maker game. Check the second post for the solution, and let me know if it works out:
https://rpgmaker.net/forums/topics/21884/
Viewing post in Jimmy and the Pulsating Mass comments
That made sense but I don't receive an error message like they did, so I don't really have a file path I can attempt to duplicate. I created two folders, one called "Resource" and another called "Resources" with folders in both called "Save," "Save Files," "Saved Files," and "Saves" and set all with permissions to Read / Write but no luck.
When I unzipped the Jimmy and the Pulsating Mass Mac.zip download file, it only created a main folder that contains the .app file and a read me txt. There are no resource subfolders or anything else inside. I did set the permissions for it to Read and Write for any user (and when I attempted to make those Resource/Save folders trying to guess where it was looking to put the saves I did so too)
I just had the same issue as this. You should put a note in the Read Me and download page that the game cannot be put in the root-level "/Applications" folder (that's typically where you put things like this). It looks like you must put it somewhere in your home folder, like "~/Desktop", "~/Documents", or "~/Applications".
I just had the same issue as this. You should put a note in the Read Me and download page that the game cannot be put in the root-level "/Applications" folder (that's typically where you put things like this). It looks like you must put it somewhere in your home folder, like "~/Desktop", "~/Documents", or "~/Applications".
I just had the same issue as this. You should put a note in the Read Me and download page that the game cannot be put in the root-level "/Applications" folder (that's typically where you put things like this). It looks like you must put it somewhere in your home folder, like "~/Desktop", "~/Documents", or "~/Applications".
I just had the same issue as this. You should put a note in the Read Me and download page that the game cannot be put in the root-level "/Applications" folder (that's typically where you put things like this). It looks like you must put it somewhere in your home folder, like "~/Desktop", "~/Documents", or "~/Applications".