The same error is throwing on Win7 RDP host. It looks like some (mis)configuration of the server, when it tries to open with wrong slash (like in Linux) or so-so.
> Unable to open file * > "// * Nobody have meet this? -- View this message in context: http://apache-guacamole-incubating-users.2363388.n4.nabble.com/SFTP-error-unable-to-open-file-XXX-on-Win8-RDP-host-tp1155p1182.html Sent from the Apache Guacamole (incubating) - Users mailing list archive at Nabble.com.
