우분투에서 desktop 우분투를 설치시 오류 문제 문의

datXXX@instance-1:~$ sudo startx
X.Org X Server 1.18.4
Release Date: 2016-07-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.4.0-97-generic x86_64 Ubuntu
Current Operating System: Linux instance-1 4.13.0-1019-gcp #23-Ubuntu SMP Thu May 31 16:13:34 UTC 2018 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.13.0-1019-gcp root=UUID==XXXXXXXXXXXX
Build Date: 13 October 2017  01:57:05PM
xorg-server 2:1.18.4-0ubuntu0.7 (For technical support please see <a href="http://www.ubuntu.com/support" rel="nofollow">http://www.ubuntu.com/support</a>) 
Current version of pixman: 0.33.6
        Before reporting problems, check <a href="http://wiki.x.org" rel="nofollow">http://wiki.x.org</a>
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Jun 24 05:54:41 2018
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) 
Fatal server error:
(EE) no screens found(EE) 
(EE) 
Please consult the The X.Org Foundation support 
         at <a href="http://wiki.x.org" rel="nofollow">http://wiki.x.org</a>
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.
xinit: giving up
xinit: unable to connect to X server: Connection refused
xinit: server error