rosdep init 报错的问题记录：

报告的错误和大家一样：

执行命令 sudo rosdep init 时，报错如下
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.
 

之后网上找方法按照下面的链接方法： 目前这个方法看来是有效的

https://blog.csdn.net/nanianwochengshui/article/details/105702188

 

之后运行rosdep update 还是报错，仔细产找发现是代码输错了，代码正确后：

rosdep update   运行成功

rosdep updatereading in sources list data from /etc/ros/rosdep/sources.list.d
Hit file:///home/yinshuli/rosdistro-master/rosdep/osx-homebrew.yaml
Hit file:///home/yinshuli/rosdistro-master/rosdep/base.yaml
Hit file:///home/yinshuli/rosdistro-master/rosdep/python.yaml
Hit file:///home/yinshuli/rosdistro-master/rosdep/ruby.yaml
Hit file:///home/yinshuli/rosdistro-master/releases/fuerte.yaml
Query rosdistro index file:///home/yinshuli/rosdistro-master/index-v4.yaml
Skip end-of-life distro "ardent"
Skip end-of-life distro "bouncy"
Skip end-of-life distro "crystal"
Add distro "dashing"
Add distro "eloquent"
Add distro "foxy"
Skip end-of-life distro "groovy"
Skip end-of-life distro "hydro"
Skip end-of-life distro "indigo"
Skip end-of-life distro "jade"
Add distro "kinetic"
Skip end-of-life distro "lunar"
Add distro "melodic"
Add distro "noetic"
updated cache in /home/yinshuli/.ros/rosdep/sources.cache