ubuntu@localhost:~$ sudo snappy update
Updating ubuntu-core (16.04.0-8)
75.05 MB / 75.05 MB [======================================] 100.00 % 1.43 MB/s 
can not open /tmp/ubuntu-core646105290: open /tmp/read-file445323681/unpack/meta/snap.yaml: no such file or directory
ubuntu@localhost:~$