1. 安装功能包
sudo apt-get install ros-noetic-turtle-tf
2. 启动lauch脚本文件
roslaunch turtle_tf turtle_tf_demo.launch
解决方法:
sudo ln -s /usr/bin/python3 /usr/bin/python
sudo apt-get install ros-noetic-turtle-tf
roslaunch turtle_tf turtle_tf_demo.launch
解决方法:
sudo ln -s /usr/bin/python3 /usr/bin/python