i resolved below  ** (pkttyagent:18193): WARNING **: Unable to register authentication agent: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus) Error registering authentication agent: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus) (g-dbus-error-quark, 4) Starting docker... ERROR:: Unable to start docker: 1   with this on the terminal export DISPLAY=:0.0 ... View more