Error "unknown address family 10" in roslaunch's ProcessMonitor

asked 2013-01-07 02:49:07 -0500

Lukas Bulwahn
61 ●2 ●4 ●11

Hi all,

I wanted to switch from fuerte to groovy on my virtual machine. After I have successfully compiled all ros_comm packages, I started roscore, but it terminates at startup with the error message:

unknown address family 10

in the roslaunch/pymon.py.

The system is a custom Linux system (compiled with openembedded) and Python 2.7.3. NB: As it a custom Linux system, I did not use rosdep to resolve the system dependencies, but tried to resolve it manually.

Googling for the error above did not give a valuable hint what I am doing wrong.

Does anyone have a clue?

The full logfile is at http://pastebin.com/mxNkHBHS.

Lukas Bulwahn BMW Car IT GmbH Petuelring 116 D-80809 Muenchen Germany Mail: lukas.bulwahn@bmw-carit.de Web: http://www.bmw-carit.de BMW Car IT GmbH Geschäftsführer: Harald Heinecke Sitz und Registergericht: München HRB134810

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answered 2013-01-07 18:59:18 -0500

Lukas Bulwahn
61 ●2 ●4 ●11

ROS Groovy seems to require python with IPv6 support in constrast to the previous versions (fuerte, electric, ...). After installing python with IPv6 support (--enable-ipv6), the issue was resolved.

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answered 2013-01-07 04:03:41 -0500

Eric Perko

8406 ●73 ●90 ●144 http://ericperko.com/

updated 2013-01-07 06:08:30 -0500

Does your Python have IPv6 support? A quick check in iPython with

In [1]: import socket

In [2]: socket.AF_INE
socket.AF_INET   socket.AF_INET6  

In [2]: socket.AF_INET6
Out[2]: 10

implies that address family 10 is IPv6.

This Google Group Posting seems to imply that you may get that error if your Python isn't compiled with IPv6 support, which could be the case given you have a custom embedded Linux install.

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