@jweb1 Resolved! Note: it was a resources folder problem. Thanks all

@sierdzio Thank you a lot for your answer ! Your explaination on the opaque pointer is clear, I didn't have that notion before. With this knowledge, most of my questions are wrong, like the 5th.

@Malachi I think you are absolutely right!

This is your job to handle it. If permission is not granted, you stop your app or pop up a dialog to tell the user that the app can not continue.

I just solved the issue following this video. Using the command provided in solution 1 did the trick. The command I used is the following: sudo ln -s /usr/local/mysql/lib/libmysqlclient.21.dylib /usr/local/lib/libmysqlclient.21.dylib The explanation of how this works is in that video, for anyone stepping with this problem in the future. Thanks @jsulm for your help and time.

@Christian-Ehrlicher Thank you so much. That is a very rookie mistake from my end. Thanks again