オリジナル投稿者： Dan ,
Can you free up some space on your drive? I have not had any problems downloading from the App store running Sierra. But then again I'm using a system with a large drive. Your retina system has a smallish SSD so you can run out of space! Lets start off deleting as much stuff you don't need I would also make a back up if you haven't already. Once you have freed up some space make sure you empty the trash can so the system can use the freed space. Ideally you want to have 1/3 of the space of a smaller SSD as free space and a larger 512 GB or larger 1/4 free. While that sounds like a lot of space SSD's unlike HD's tend to wear out the storage areas. So by giving them more space the wearing is more even.