2021-09-17ROS安装时 rosdep init/update 出现报错解决方法
ROS安装时 rosdep init/update 出现报错
在安装ROS的过程中，很多同学在执行上述指令时会提示以下错误：
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.
其主要解决办法是用VPN，但是这在Ubuntu中很难实现；或者用手机开热点（移动手机热点没有用，得是联通手机或电信）；或者通过代码和相关指令完成。本文主要提供两种办法，均可行。整理修改后提供解决ROS rosdep init/update报错的方法（终极版）。
方法1
执行三条指令（这个简单方便，大部分可行）：
sudo apt-get install python3-pip
sudo pip3 install fix-rosdep
sudo fix-rosdep
方法2
步骤1
进入到 sources.list.d 文件夹（如果没有，则新建）
修改 gedit 20-default.list
cd /etc/ros/rosdep/sources.list.d
sudo gedit 20-default.list
将里面所有的
raw.githubusercontent.com/ros/rosdistro/master替换成gitee.com/wybros/rosdistro/raw/master
修改前：
#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
修改后：
#os-specific listings first rosdep update
yaml https://gitee.com/wybros/rosdistro/raw/master/rosdep/osx-homebrew.yaml osx
#generic
yaml https://gitee.com/wybros/rosdistro/raw/master/rosdep/base.yaml
yaml https://gitee.com/wybros/rosdistro/raw/master/rosdep/python.yaml
yaml https://gitee.com/wybros/rosdistro/raw/master/rosdep/ruby.yaml
gbpdistro https://gitee.com/wybros/rosdistro/raw/master/releases/fuerte.yaml fuerte
#newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead
步骤2
进入到 rosdep2 文件夹，
修改 gbpdistro_support.py
cd /usr/lib/python2.7/dist-packages/rosdep2/ sudo gedit
gbpdistro_support.py
将里面所有的 raw.githubusercontent.com/ros/rosdistro/master替换成gitee.com/wybros/rosdistro/raw/master
修改后如下
FUERTE_GBPDISTRO_URL = 'https://gitee.com/wybros/rosdistro/raw/' \
'master/releases/fuerte.yaml'
步骤3
进入到 rosdep2 文件夹，修改 rep3.py
cd /usr/lib/python2.7/dist-packages/rosdep2/
sudo gedit rep3.py
将里面所有的
raw.githubusercontent.com/ros/rosdistro/master替换成gitee.com/wybros/rosdistro/raw/master
修改后如下
REP3_TARGETS_URL = 'https://gitee.com/wybros/rosdistro/raw/master/releases/targets.yaml'
步骤4
进入到 rosdep2 文件夹，
修改 sources_list.py
cd /usr/lib/python2.7/dist-packages/rosdep2/
sudo gedit sources_list.py
将里面所有的
raw.githubusercontent.com/ros/rosdistro/master替换成gitee.com/wybros/rosdistro/raw/master
修改后如下
DEFAULT_SOURCES_LIST_URL = 'https://gitee.com/wybros/rosdistro/raw/master/rosdep/sources.list.d/20-default.list'
步骤5
进入到 rosdistro 文件夹
修改 init.py
cd /usr/lib/python2.7/dist-packages/rosdistro/
sudo gedit init.py
将里面所有的 raw.githubusercontent.com/ros/rosdistro/master
替换成gitee.com/wybros/rosdistro/raw/master
修改后如下
DEFAULT_INDEX_URL = 'https://gitee.com/wybros/rosdistro/raw/master/index-v4.yaml'
最后
打开新终端执行
rosdep update
如果出现如下提示则表示成功！
原文连接：https://mp.weixin.qq.com/s/mghnF4sesImHpg4ScZ-bRA