(Fellow video dudes: while you’re here for help with Premiere Pro’s bad behavior, maybe you’d also be interested in my article about why you shouldn’t be shooting with flat, log, or “cinema” picture profiles. It’s the second most popular article on the site.)
I recently had a Premiere Pro project I’d been working on for a couple of weeks that refused to import some clips. When I attempted to link the media again, I’d get a box that said “the importer returned a generic error.” What’s especially annoying is that the failing clips were from the same camera as several successful clips; there seemed to be no reason for these three or four clips to simply not work and I could play them in a media player just fine. The failure didn’t even happen after an update because I’d been working in the project using the latest updated version.
I checked file permissions on the network server and everything was good.
I deleted all of the Adobe caches and manually killed all Adobe processes in Task Manager.
I restarted the computer and even tried opening an auto-save of the project, yet all of these failed to resolve the problem.
Adobe suggests that these generic errors on import can be caused by activation issues, so I signed out of my Creative Cloud account and signed back in. Didn’t work.
In the end, what I had to do was open Creative Cloud, uninstall Premiere Pro (keeping preferences), and reinstall Premiere Pro. No reboot needed! I still don’t know why this worked, but it did. Maybe my experience and solution will save you some valuable time troubleshooting this odd error.