Failed to create UDP port

Hi,

What can be done to prevent non-GUI Jmeter from failing to run and
producing the following message: "Failed to create UDP port" ?

Thanks,
Shay

EXAMPLE:

Creating summariser <summary>
Created the tree successfully using sampler.jmx
Starting the test @ Mon Jun 30 23:26:56 IDT 2014 (1404160016713)
Failed to create UDP port
summary + 3 in 3.3s = 0.9/s Avg: 956 Min: 412 Max: 1503
Err: 0 (0.00%) Active: 1 Started: 1 Finished: 0