gnome-session[3634]: WARNING: Failed to start app: Unable to start application: Failed to execute child process "cairo-dock" (No such file or directory) (polkit-gnome-authentication-agent-1:3782): GLib-WARNING **: GChildWatchSource: Exit status of a child process was requested but ECHILD was received by waitpid(). Most likely the process is ignoring SIGCHLD, or some other thread is invoking waitpid() with a nonpositive first argument; either behavior can break applications that use g_child_watch_add()/g_spawn_sync() either directly or indirectly. (gnome-settings-daemon:3716): Gdk-ERROR **: The program 'gnome-settings-daemon' received an X Window System error. The error was 'BadWindow (invalid Window parameter)'. (Details: serial 3567 error_code 3 request_code 2 minor_code 0) gnome-session[3634]: WARNING: Application 'gnome-settings-daemon.desktop' killed by signal 5 (software-center:28149): Gtk-WARNING **: GtkEntry - did not receive focus-out-event. If you