MacOS：操作无法完成，因为磁盘已满

Question

You are copying a bunch of files, you know you have enough space on your SSD but suddenly you're getting the error below:

Answer 1

The reason you got the error is there are other unmounted drives since they're unmounted they cannot be used. In my case, they appear under "Other Volumes in Container".

For you to resolve this, you'll need to go to Disk Utility (Command + Space > type Disk Utility). Navigate to View menu > Show All Drives. There you can delete those drives to free up space.

Answer 2

Left side apple icon -> About This Mac -> Storage -> Manage

Now, you can delete some data like applications, Bin, documents etc to free up storage.