error when execute the Xorg(XKB: Failed to compile keymap)

[栾广强]

I use centos, the directory of Xorg is /usr/local/bin,when I execute the Xorg, the message is here:

[lithx at localhost bin]$ sudo ./Xorg :1 -retro

X.Org 17.2 X Server 1.17.2
Release Date: 2015-06-16
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.10.0-327.10.1.el7.x86_64 x86_64 
Current Operating System: Linux localhost 3.10.0-327.10.1.el7.x86_64 #1 SMP Tue Feb 16 17:03:50 UTC 2016 x86_64
Kernel command line: BOOT_IMAGE=/vmlinuz-3.10.0-327.10.1.el7.x86_64 root=UUID=7b6c31f0-f031-40dc-8799-fafd08935839 ro crashkernel=auto rhgb quiet LANG=en_US.UTF-8
Build Date: 18 April 2016  07:52:56PM
 
    Before reporting problems, check http://wiki.x.org
    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: "/usr/local/var/log/Xorg.1.log", Time: Tue May 10 02:04:30 2016
(==) Using config directory: "/etc/X11/xorg.conf.d"
XKB: Failed to compile keymap
Keyboard initialization failed. This could be a missing or incorrect setup of xkeyboard-config.
(EE) 
Fatal server error:
(EE) Failed to activate core devices.(EE) 
(EE) 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/usr/local/var/log/Xorg.1.log" for additional information.
(EE) 
(EE) Server terminated with error (1). Closing log file.


can you tell me what should I do? thank you.
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