SQL Server Management Studio 2014 Backup - Set Property Devices Error
Here is my Answer for Error message "To accomplish this action, set property Devices. (Microsoft.SqlServer.SmoExtended)"


Make sure the User Account you are logged in as has DBO rights on both, the MASTER Db and the DB you want to backup.
Using the SQL Express Manager, Expand the SQL Server Objects in the left pane and find "Server Objects" then click on "Backup Devices"


Right Click and create a "New BackUp Device.." and call it the same as the DB to be backed up... pointing to a directory on your server (e.g.: C:\MySQLBackups...)

This will create an "empty file" with the .bak extention. (e.g. C:\MySQLBackups\DatabaseName.bak)

Then right-click on this new device created and select "Backup database"...

The rest is straight forward...

This worked for me... Good luck!"