Whilst deploying using SFTP you may see the generic error of `failure`. Unfortunately, OpenSSH SFTP server always uses this description for all errors. Is this case, there is no way to tell a specific reason for the failure. However, it will most likely be one of the following:

* Renaming a file to a name of a file that already exists.
* Creating a directory that already exists.
* Moving a remote file to a different filesystem.
* Uploading a file to a full filesystem.
* Exceeding a user disk quota.