ROS中使用rqt报错Command 'rqt' not found

ROS在使用rqt命令时突然报错Command ‘rqt’ not found，可能是因为不小心卸载掉了rqt，重装可解决

sudo apt-get install ros-kinetic-rqt  
sudo apt-get install ros-kinetic-rqt-graph  
sudo apt-get install ros-kinetic-rqt-common-plugins