ubuntu16.04 安装ROS时sudo rosdep init 出错

~$ sudo rosdep init ERROR: cannot download default sources list from: https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Website may be down. 这时表现,通过网上找答案已解决。 解决办法: sudo gedit /etc/resolv.conf 将原有的nameserver这一行注释,并添加以下两行: nameserver 8.8.8.8 #google域名服务器 name