Liferay LDAP com.liferay.portal.UserScreenNameException

I was attempting to configure Liferay to use LDAP.

After configuration was complete, I attempted to login using my LDAP credentials and I encountered this error:

com.liferay.portal.UserScreenNameException

I looked around for answers and it appears that the "Screen name" parameter is sensitive to space characters and underscores as mentioned in this forum:

http://www.liferay.com/community/forums/-/message_boards/message/5681334

So I switched the "Screen name" value from "cn" to "uid", and this resolved the issue