[Freeswitch-users] FreeSwitch Error: "username param is REQUIRED!"

Hi! I'm trying out FreeSwitch with sample configuration at sip_profile/external/example.xml. I removed few required line from there and issued command: sofia profile external restart reloadxml Its giving me the following error: [ERR] sofia.c:2606 ERROR: username param is REQUIRED!

From the source code I see at the specified line checks if "username" is null, if so we get this error. How come I get this error while I see a string is there in the configuration file?

-- Sincerely, Sazzad Bin Kamal