Bebop 2 roslaunch error exit code -11

Product: [Bebop2]
Product version: Ubuntu 16.04
SDK version: [3.9.X]
Use of libARController: [YES/NO] (Only for ARSDK)
SDK platform: [iOS/Android/Unix/Python…]
Reproductible with the official app: [YES/NO/Not tried]

I want to play this github.

First, I check my ip number (use ifconfig)

Second, I change my bebop2.drone file

But… I have problem on this code.
-> roslaunch bebop_driver bebop_node.launch ip:<my_ip>
I have this error…

How can solve this problem…? :frowning: