ubuntu 16.04 vnc server xstartup gnome panel missing

(gnome-settings-daemon:7805): sharing-plugin-WARNING **: Failed to StopUnit service: GDBus.Error:: Unit rvice not loaded. (gnome-settings-daemon:7805): GLib-GIO-CRITICAL **: g_task_return_error: assertion 'error != NULL' failed ** (process:7845): WARNING **: GDBus.Error.ServiceUnknown: The name was not provided by any. ** (gnome-settings-daemon:7805): WARNING **: Unable to register client: GDBus.Error.ServiceUnknown: The name was not provided by any. (gnome-settings-daemon:7805): media-keys-plugin-WARNING **: Unable to inhibit keypresses: GDBus.Error.AccessDenied: Permission denied Xlib: extension 'XInputExtension' missing on display ':1'.

(nautilus:7807): Gtk-WARNING **: Theme parsing error: :1:0: Failed to import: The resource at '/org/gnome/libgd/tagged-entry/default.css' does not exist ** (gnome-panel:7804): WARNING **: Failed to register client: GDBus.Error.ServiceUnknown: The name was not provided by any. (gnome-settings-daemon:7805): rfkill-plugin-WARNING **: Could not open RFKILL control device, please verify your installation Window manager warning: Missing composite extension required for compositing Metacity-Message: could not find XKB extension.

#x-terminal-emulator -geometry 80x24+10+10 -ls -title '$VNCDESKTOP Desktop' &

Sudo apt-get install tightvncserver xtightvncviewer tightvnc-java Sudo apt-get install ubuntu-gnome-desktop

Ubuntu 16.04 vnc server xstartup gnome panel missing