Ldap base tree for groups is empty

I am getting this error message very frequently (several times a minute ) in my nextcloud log:

{“reqId”:“WEsj8eb2Qz5kpEjIbCHqmAAAABs”,“remoteAddr”:“63.157.191.122”,“app”:“user
_ldap”,“message”:“Base tree for Groups is empty, using Base DN”,“level”:1,“time”
:“2016-12-09T21:37:57+00:00”,“method”:“PROPFIND”,“url”:"/remote.php/webdav/",
“user”:“xxxxx”}

I am using Nextcloud 10.0.1,with an Active Directory ldap server. What is missing from my Nextcoud ldap config?

–Stephen

Fixed this. Found the group base tree entry in the advanced tab. Once I entered the field and restarted apache, the error stopped.