MAMP Pro Error: The MySQL configuration file my.cnf couldn't be written
I just purchased MAMP PRO and I'm having this error as well. Here's what "fixed" it:
- Open Terminal and type in
sudo killall -9 mysqld. You might see "No matching processes belonging to you were found," which is fine, it means that MySQL was not running. - Now, in Applications, look for the regular MAMP folder. Open MAMP here and click Start Servers
- Now open MAMP PRO and the servers should be started
This is just a work-around, it definitely should not require these. At the very least, this should get you up and running.
Contacting support!