So I've enabled the FTP and filled out the required boxes within Filezilla but upon attempting quick connect I get this message, "FATAL ERROR: Received unexpected end-of-file from SFTP server". I'm not sure what this means so how can I remedy this?

I've been having issues getting the WiFi to work on my MintyPi and I've decided to deal with it in a future version. So where would I put the roms in micro sd card's folders so that retroarch can use them?