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目的：安装urdf_tutorial前提：已经建立catkin工作空间方法：将urdf_tutorial配套代码仓库git到本地后make。cd ~/catkin_ws/srcgit clone https://github.com/ros/urdf_tutorial.git urdf_tutorialcd ~/catkin_wscatkin_make仓库：https://github.com/ros/urdf_tutorialurdf教程：http://wiki.ros.org/ur

gazebo11运行中，单击场景中任何一个物体，在shell中弹出如下的提示：Topic [/data://world/default/model/mu_vehicle/plugin/follower/joint_cmd] is not valid.参考：https://answers.gazebosim.org/question/25028/did-the-symantics-of-how-to-do-joint-commands-change-for-gazebo-10-or-11/题主描述

安装http://gazebosim.org/tutorials?tut=ros_installing&cat=connect_rossudo apt-get install ros-melodic-gazebo-ros-pkgs ros-melodic-gazebo-ros-controlhttps://blog.youkuaiyun.com/qq_42521542/article/details/104434397git clone https://github.com/ros-simulation