ubuntu24.04 ros2 rosdep相关

rosdep init 异常，

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.

说明 `rosdep` 无法连接到 GitHub 上的 `rosdistro` 仓库。

这几乎可以肯定是由于**网络连接问题**或**防火墙/代理设置**导致的。以下是详细的排查步骤和解决方案：

可以手动创建 `rosdep` 试图下载的文件。

```bash

sudo mkdir -p /etc/ros/rosdep/sources.list.d

```

**手动创建 `20-default.list` 文件**：

使用 `gedit` 或其他编辑器打开该文件。

```bash

sudo gedit /etc/ros/rosdep/sources.list.d/20-default.list

```

**复制并粘贴以下内容**：

将下面的官方源列表内容复制到打开的 `gedit` 文件中并保存。

复制代码

# os-specific listings first yaml 
https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/osx-homebrew.yaml osx # generic 
yaml https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/base.yaml 
yaml https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/python.yaml 
yaml https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/ruby.yaml 

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

完成以上操作后，`sudo rosdep init` 的工作就已经手动完成了。你可以继续执行后续的 `rosdep update` 命令。

rosdep update 异常

修订源

sudo gedit /etc/ros/rosdep/sources.list.d/20-default.list 如上，

修改文件

/usr/lib/python3/dist-packages/rosdistro/init.py

这个修订很重要

复制代码

#DEFAULT_INDEX_URL = 'https://raw.githubusercontent.com/ros/rosdistro/master/index-v4.yaml'
DEFAULT_INDEX_URL = 'https://mirrors.tuna.tsinghua.edu.cn/rosdistro/index-v4.yaml'

rosdep update

复制代码

~/ros2_ws$ rosdep  update 
/usr/bin/rosdep:6: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  from pkg_resources import load_entry_point
reading in sources list data from /etc/ros/rosdep/sources.list.d
Hit https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/osx-homebrew.yaml
Hit https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/base.yaml
Hit https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/python.yaml
Hit https://mirrors.tuna.tsinghua.edu.cn/rosdistro/rosdep/ruby.yaml
Query rosdistro index https://mirrors.tuna.tsinghua.edu.cn/rosdistro/index-v4.yaml
Skip end-of-life distro "ardent"
Skip end-of-life distro "bouncy"
Skip end-of-life distro "crystal"
Skip end-of-life distro "dashing"
Skip end-of-life distro "eloquent"
Skip end-of-life distro "foxy"
Skip end-of-life distro "galactic"
Skip end-of-life distro "groovy"
Add distro "humble"
Skip end-of-life distro "hydro"
Skip end-of-life distro "indigo"
Skip end-of-life distro "iron"
Skip end-of-life distro "jade"
Add distro "jazzy"
Add distro "kilted"
Skip end-of-life distro "kinetic"
Skip end-of-life distro "lunar"
Skip end-of-life distro "melodic"
Skip end-of-life distro "noetic"
Add distro "rolling"

好运！