ROS安装报错cannot download default sources list from

安装教程

https://blog.csdn/weixin_43159148/article/details/83375218

ERROR: cannot download default sources list from: https://raw.githubusercontent/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Website may be down.

报错原因是GitHub的raw.githubusercontent无法连接

需要解决GitHub的raw.githubusercontent无法连接问题

通过IPAddress首页,输入raw.githubusercontent查询到真实IP地址

修改hosts Ubuntu，

sudo vi /etc/hosts

添加以下内容保存即可

199.232.28.133 raw.githubusercontent

转（http://qjzd:3000/topic/5e48cc33dcf06d6a181ffb81）

然后输入sudo rosdep init就可以了