My Quik app on my macbook is tells me when I want to import videos from my Gopro Hero 4 Session the same message; "Need.More.Space." Even though I cleared up my sd card in my camra and checked my hard drive on my computer with icloud only have used about 600KB/5GB and me putting most of my old videos into the trash and yet, it still tells me this crap. Any suggestions???
Does your MacBook Pro has two drives? The default location for the imported media from the camera is under the following path for Mac computers: /Users/<YourUserName>/Pictures/GoPro
For the best results, ensure to have twice as much storage available as you are trying to move over from your camera.
You may also try the suggested troubleshooting steps in this thread that has worked for some users.