I have met the blow problem
Execute in WebShell #1
roslaunch tum_ardrone tum_ardrone.launch
Result:
ERROR: cannot launch node of type [tum_ardrone/drone_stateestimation]: can’t locate node [drone_stateestimation] in package [tum_ardrone]
ERROR: cannot launch node of type [tum_ardrone/drone_autopilot]: can’t locate node [drone_autopilot] in package [tum_ardrone]
ERROR: cannot launch node of type [tum_ardrone/drone_gui]: can’t locate node [drone_gui] in package [tum_ardrone]
I couldn’t do anything before fix thie problem