[SOLVED] Fontconfig 2.8.0 linux fc-list no result

I installed fontconfig by command yum install fontconfig. there's no error when install, but after installed, I run fc-list, the result is empty. Run fc-cache also no result. why no fonts installed? Please help.

Please see below screenshot:

[command output][1]

Version info: 

[root@g23leiapp03 bin]# fc-cache -V

fontconfig version 2.8.0

[root@g23leiapp03 bin]# cat /etc/redhat-release

Red Hat Enterprise Linux Server release 6.3 (Santiago)

Thanks.