Keynote error: 'The image couldn't be inserted'

Question

Hi everyone,
Every time I want to insert an image, it keeps saying: 'The image "<image name>" couldn't be inserted.' It does this while using 'Insert > Choose..' and with drag & drop. Please tell me how to fix this. Keynote is unusable for me this way, and I really really need it for work purposes :/
BTW i'm  using Keynote 6.5.2, but i also had the same problem when i was running 6.2.2.
Anyone? I'm at a loss here..

Answer 1

Okay, so I found myself in this same wrist-slitting situation, and just tried doing a bunch of different things.
What seems to work is this:
Create a new Keynote file.
Drag the slides from the "corrupt" Keynote file into the new Keynote file.
The photos will still be missing, but you can "replace" them now ... if you don't remember which ones they are, select the missing picture in the "corrupt" file and then check the file name of that photo in the "Format" tab in the Image tab. Then in the new file, click on the missing photo and go to "replace" to get the correct photo back into your slide in the new file.
In this way you at least still have your Animate build-ins and build-outs, as well as Transitions and Sizing and Positioning ... BUT DO DOUBLE-CHECK ... I had a few that had to be adjusted, I confess.
This solution is FAR LESS THAN IDEAL, but given the radio silence from Apple on this, I guess those of us out here in the hinterlands need to jerry-rig the system as best we can. Good luck!