Linux生成语言环境数据库时出错

Question

Linux生成语言环境数据库时出错，如图

[root@iZ2zei06uwqtqjndw1pbvwZ ~]# localedef -i en_US -f UTF-8 en_US.UTF-8
[error] character map file `UTF-8' not found: No such file or directory
[error] default character map file `ANSI_X3.4-1968' not found: No such file or directory
[root@iZ2zei06uwqtqjndw1pbvwZ ~]# 

操作系统是Centos7 64位的

不知道是什么原因导致的，有大大提示一下嘛