Qjackctl install on OS X

Hi, I know that this is a linux forum but I couldn't think where else to post this. I compiled qjackctl on OS X 10.6.8 and everything seems to be in order. The Server will start, and other applications will recognise that Jack is running, but after about a minute it stops and a popup window informs me that: "Could not connect to JACK server as client.- Overall operation failed. Please check the messages window for more info." Furthermore, the connections window does not give me a list of available clients. It is empty, even when jackrouter is selected as an output in another application. I am using jack1 and the start command
usr/local/bin/jackd

Can anyone suggest something to help here? The output from the messages window is as follows:

Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
StartNotification name = default
Input channel = 0 ==> JACK input port = 0
Input channel = 1 ==> JACK input port = 1
AudioDeviceGetProperty kAudioDevicePropertyLatency error
AudioDeviceGetProperty kAudioDevicePropertySafetyOffset error
CoreAudio driver is running...
19:56:31.251 Could not connect to JACK server as client. - Overall operation failed. Please check the messages window for more info.