Hi all.
I purchased and used Affinity for the very first time this morning and had exactly the same problem.
I selected the file from the Photos app, then selected 'edit, then Extensions..... Affinity Develop. Made some minor changes, and then got exactly the error message (described by @rontube), when I clicked on the save button.
I am using a 27" iMac retina to edit a CR2 raw file. The CR2 file is stored locally on the iMac. Am I doing something wrong?
I am giving Affinity a try before considering spending money on an Adobe subscription so any views would be welcome.... I really want to give this app a fair shot, but need something that works.... every time!
Thanks in advance for help.
Jeff
