这两天有小伙伴问到在安装完rotors后出现如下问题：
这个问题其实是ros环境没有配置好，运行下面的命令，将catkub_ws加入ros的工作空间
mkdir -p ~/catkin_ws/src
cd ~/catkin_ws/src
catkin_init_workspace # initialize your catkin workspace
wstool init
cd ~/catkin_ws/
catkin init # If you haven't done this before.
catkin build
echo "source ~/catkin_ws/devel/setup.bash" >> ~/.bashrc
source ~/.bashrc
一定要提前初始化catkin_ws和配置环境
再运行下面命令，可以找到rotors包，就说明没有问题了
rospack find rotors_gazebo
参考：https://blog.csdn.net/zhelijun/article/details/88868993
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