参考文章https://blog.csdn.net/m0_70557820/article/details/129343561

报错信息如下

ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml]:
    <urlopen error timed out> (https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/osx-homebrew.yaml)
ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml]:
    <urlopen error timed out> (https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/python.yaml)
ERROR: unable to process source [https://raw.githubusercontent.com/ros/rosdistro/master/releases/fuerte.yaml]:

截图如下

​解决办法如下
1、在GitHub上下载文件： GitHub - ros/rosdistro: This repo maintains a lists of repositories for each ROS distribution

2、解压，用下面的命令
unzip rosdistro-master.zip -d rosdistro

3、修改20-default.list文件
sudo nano /etc/ros/rosdep/sources.list.d/20-default.list
将以下内容修改
#os-specific listings first
yaml file:///home/tc/ros/rosdistro/rosdep/osx-homebrew.yaml osx
#generic
yaml file:///home/tc/ros/rosdistro/rosdep/base.yaml
yaml file:///home/tc/ros/rosdistro/rosdep/python.yaml
yaml file:///home/tc/ros/rosdistro/rosdep/ruby.yaml
gbpdistro file:///home/tc/ros/rosdistro/releases/fuerte.yaml fuerte
#newer distributions (Groovy, Hydro, ...) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead
将上面的 tc换成自己的ID。

4、再修改source_list.py文件
sudo gedit /usr/lib/python2.7/dist-packages/rosdep2/sources_list.py
然后修改以下内容将文本中内容替换：
DEFAULT_SOURCES_LIST_URL = 'file:///home/lyy/ros/rosdistro/rosdep/sources.list.d/20-default.list'

5、然后修改rep3.py文件
sudo gedit /usr/lib/python2.7/dist-packages/rosdep2/rep3.py
替换一下内容：
REP3_TARGETS_URL = 'file:///home/lyy/ros/rosdistro/releases/targets.yaml'

6、修改__init__.py文件
sudo gedit /usr/lib/python2.7/dist-packages/rosdistro/__init__.py
替换一下内容：
DEFAULT_INDEX_URL = 'file:///home/lyy/ros/rosdistro/index-v4.yaml'

最后运行

​

弄好之后是这样的