Invalid zero-length device name. Reissue the BACKUP statement with a valid device name

ERROR MESSAGE:

Msg 3044, Level 16, State 1, Line 1
Invalid zero-length device name. Reissue the BACKUP statement with a valid device name.
Msg 3013, Level 16, State 1, Line 1
BACKUP DATABASE is terminating abnormally.

EXPLANATION:

You may encounter such an error when you take backup.

SOLUTION:

If you have encountered this error, make sure to specify a file name for the backup file.

For example, if you run a command as follows, you will get this error: