thanks for this great plugin. Creating my Client-API worked very well (as described at WPSquare - http://www.wpsquare.com/backup-wordpress-blog-google-drive/).
The first step for my Authorization with GoogleDrive worked also, but back in the plugin i receive my "Authorization failed - Did not receive a refresh token".
I tried already to reinstall the plugin, deleted the Client-API and created a new one and i deleted the access to GoogleDrive at https://accounts.google.com/b/0/IssuedAuthSubTokens.
The message stays, is there a way to receive a refresh token or another workaround?
Thanks in advance!