Hi, I have configured Koha 17.11 in Debian 8.10. I am facing problem with configuring ldap with koha. I am getting following error with following configuration. can any one guide me to work it out? Note: I am using anonymous ldap. Configuration: <useldapserver>1</useldapserver><!-- see C4::Auth_with_ldap for extra configs you must add if you want to turn this on --> <ldapserver id="ldapserver" listenref="ldapserver"> <hostname>ldap://10.2.1.1</hostname> <base>dc=domain,dc=domain,dc=domain</base> <user></user><!-- DN, if not anonymous --> <pass></pass><!-- password, if not anonymous --> <replicate>1</replicate> <!-- add new users from LDAP to Koha database --> <update>1</update> <!-- update existing users in Koha database --> <auth_by_bind>1</auth_by_bind> <!-- set to 1 to authenticate by binding instead of password comparison, e.g., to use A$ <principal_name>uid=%s,ou=Accounts,dc=internal,dc=cdsc,dc=ac,dc=th</principal_name> <!-- optional, for auth_by_bind: a printf format to make userPrincipalName from koha userid --> <mapping> <!-- match koha SQL field names to your LDAP record field names --> <userid is="uid"></userid> <password is="userpassword"></password> <email is="mail"></email> </mapping> </ldapserver> Error: Software error: Error reading file /etc/koha/sites/cselib/koha-conf.xml. Try running this again as the koha instance user (or use the koha-shell command in debian) Compilation failed in require at /usr/share/koha/lib/C4/Auth.pm line 29. BEGIN failed--compilation aborted at /usr/share/koha/lib/C4/Auth.pm line 29. Compilation failed in require at /usr/share/koha/opac/cgi-bin/opac/opac-main.pl line 23. BEGIN failed--compilation aborted at /usr/share/koha/opac/cgi-bin/opac/opac-main.pl line 23. -- Regards, sundAr g