问题背景
执行安装命令：
sudo apt install ros-foxy-rmw-connext-cpp
终端出现警告：
[connext_cmake_module] Warning: The location at which Connext was found when the workspace was built [[/opt/rti.com/rti_connext_dds-5.3.1]] does not point to a valid directory, and the NDDSHOME environment variable has not been set. Support for Conne
解决方法
这里我不想用这个中间件了，所以选择直接卸载：文章来源：https://www.toymoban.com/news/detail-604208.html
sudo apt purge ros-foxy-rmw-connext-cpp
sudo apt purge ros-foxy-connext-cmake-module
参考链接
[1] How to supress Connext warning in ROS2文章来源地址https://www.toymoban.com/news/detail-604208.html
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