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6.4.2 安装sudo apt install ros-$ROS_DISTRO-gazebo-ros-pkgs这个功能包的时候安装失败，是不是安装包被删除了啊
你用的是哪个版本的ubantu和ros？如果你用的是ubantu 24.04，ROS2是最新的ROS jazzy版本，那它和gazebo的通信包不再是小鱼视频里的那个包了，ROS2新版本换协议了。如果你用的就是小鱼视频里ubantu 22.04和ROS2 humble版本，那你换个源试试，换阿里云或者华为云试试
