I'm having problems uploading images from SD card. Its telling me files are not readable. I shoot in RAW, use a Mac and have not changed any camera settings. I've tried several cards, updated my LR, restarted my computer. No change. LR even seems like it has times where it seems to be stalled, I have to force quit because i can not get it to close down.
I assume you mean "importing" and not "uploading". What is the exact unedited word-for-word error message?
This is a permissions problem on the folder you are trying to copy the images to. Yes the error message is deceiving. Anytime LR can Write the images to the folder, Destination, you have selected this error pops up.