Machine ips roslaunch ARM

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Hi, I try to deploy a ROS application based on ARM and when I run some nodes with roslaunch on statup I see that anyone is run. The error is "machine_ips = [host[4][0] for host in socket.getaddrinfo(machine.address, 0, 0, 0, socket.SOL_TCP)]". I see this error when odroid has not internet connection. AS I have seen, the problem happend in core.py when roslaunch try get local machine ip. I use export ROS_MASTER_URI and ROS_IP but the problem persist.

Can anyone help me? Thanks in advanced