sudo rosdep init 网址被墙问题解决

感谢方法来源
在安装ROS时sudo rosdep init 下载问题
解决网址被墙
如果在这操作之前没有瞎XX搞过之前，成功的可能性还是挺大的，如果按照某些教程一项一项搞过，现在改完hosts还是不成功的话，建议像我一样重装系统，装完系统在装ROS前就把hosts改了

sudo gedit /etc/hosts

在最后一行添加

151.101.108.133 raw.githubusercontent.com

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注意！

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ip可能会变，使用前先打开这个网址
看能否打开
这个网址打开内容为

# os-specific listings first
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml osx

# generic
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/base.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml
yaml https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/ruby.yaml
gbpdistro https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml fuerte

# newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead

如果打不开自行去这个网址查找raw.githubusercontent.com能用的IP

WIN10系统的hosts位置

C:\WINDOWS\system32\drivers\etc

其余类上