iCloud photo upload - startup disc full
I have a MacBook pro retina display bought in early 2017. OSX El Capitan version 10.11.6.
I keep getting the message start up disc full.
So I buy a load of storage on icloud to upload my photos and vids, which take up 60% of my startup disc.
I then get this message:
i dont understand. I am getting the large files of my disc, onto the cloud but cant because it's full? so confused. please help.
MacBook Pro with Retina display, OS X El Capitan (10.11.6)