freeraduis LDAP error

[dhanushka ranasinghe]

hi guys

im getting this error when radius  authenticating  with LDAP, is there
any way to sort the issue

 # Executing group from file /etc/freeradius/sites-enabled/default
Thu May  3 11:50:26 2012 : Info: +- entering group PAP {...}
Thu May  3 11:50:26 2012 : Info: [pap] ERROR: You set 'Auth-Type =
PAP' for a request that does not contain a User-Password attribute!
Thu May  3 11:50:26 2012 : Info: ++[pap] returns invalid
Thu May  3 11:50:26 2012 : Info: Failed to authenticate the user.

Thank You
Dhanushka