简介:解决“python-roslaunch : 依赖: python-roslib 但是它将不会被安装”问题 问题描述: 在Ubuntu 18.04安装ROS melodic后,测试ros环境: roscore 发现有提示报错: Command 'roscore' not found, but can be installed with:sudo apt install python-roslaunch 本以为按照提示安装python-roslaunch即可,按照提示执行...