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 -------------------------------------------------------------