problem with vasftpd server

[vladone]

I have installed vsftpd server v. 2.0.3
I have also this server on linux server.
I try to make this to work on freebsd now, but i can't login.
My configurations is:
vsftpd.conf located at /usr/local/etc/ and looks like this:

vsftpd.conf

local_enable=YES
local_umask=022
dirmessage_enable=YES
xferlog_enable=YES
connect_from_port_20=YES
xferlog_file=/var/log/vsftpd.log
idle_session_timeout=600
data_connection_timeout=300
chroot_list_enable=YES
chroot_local_user=YES
ls_recurse_enable=YES
pam_service_name=ftp
listen=YES
background=YES
secure_chroot_dir=/usr/local/share/vsftpd/empty

When i try to login receive this message:
"500 OOPS: vsftpd: cannor locate user specified in 'ftp_username':fpt"

Where is the problem?