Ubuntu 14.04 can't move files from phone storage to computer

I have a HTC One m8, and when I plug it in it shows up in Files as "Android Phone". It shows my internal storage automatically, and at the top it says "Contains digital photos Shotwell". But the issue is, when I try to move a file from my phone's internal storage to a place on my computer (drag and dropping), I get an error and it doesn't work. It says there was an error copying it to file into /home/user/... And if I press show more details it says this: Error getting file: -6: Not Supported. Any help would be greatly appreciated, and I have seen others having this problem but no solution.