vsFTP报500 OOPS错误

在RHEL5.1中用源码安装vsftp2.0.7(不是srpm的方式),装完后测试,用匿名用户登陆是正常的,但改为用本地用户登陆时就发生了如下错误:
[root@localhost vsftpd-2.0.7]# ftp localhost
Connected to localhost.localdomain.
500 OOPS: vsftpd: cannot locate user specified in 'chown_username':whoever
ftp>

vsftpd.conf配置文件的内容为:
anonymous_enable=YES
local_enable=YES
write_enable=YES
local_umask=022
#anon_upload_enable=YES
#anon_mkdir_write_enable=YES
dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
#chown_uploads=YES
#chown_username=whoever
#xferlog_file=/var/log/vsftpd.log
#xferlog_std_format=YES
#idle_session_timeout=600
#data_connection_timeout=120
#nopriv_user=ftpsecure
#async_abor_enable=YES
#ascii_upload_enable=YES
#ascii_download_enable=YES
ftpd_banner=Welcome to kingbanner FTP service.
#deny_email_enable=YES
#banned_email_file=/etc/vsftpd.banned_emails
#chroot_list_enable=YES
#chroot_list_file=/etc/vsftpd.chroot_list
#ls_recurse_enable=YES
listen=YES