rlm_ldap: Attribute "User-Password" is required for authentication

Hi all, Currently I need to use ldap to authenticate my users and I keep encountering the same problem "rlm_ldap: Attribute "User-Password" is required for authentication". I have tried adding "checkItem User-Password userPassword" into ldap.attrmap but it still doesn't work. Anyone have any ideas how I can enable radius to authenticate thru ldap? rlm_ldap: - authenticate rlm_ldap: Attribute "User-Password" is required for authentication. modcall[authenticate]: module "ldap" returns invalid for request 0 modcall: group Auth-Type returns invalid for request 0 auth: Failed to validate the user. cheers, melvin