Hi, I am trying to install ros electric version with rosinstall ~/ros "http://packages.ros.org/cgi-bin/gen_rosinstall.py?rosdistro=electric&variant=desktop-full&overlay=no" But it blocks here : Installing http://svn.pointclouds.org/ros/tags/perception_pcl_unstable-1.0.1 to /opt/ros/perception_pcl I tried to ping without success. Is there anything wrong ?