'How do I resolve Problem building "LS2N_PX4_ROS2" package in ROS2?

I found this package: https://univ-nantes.io/ls2n-drones/ls2n_drone_ros2/-/tree/mpc_flip_uncomplete

I am trying to build it, I followed every step as mentioned in the git. but I am getting errors:

[I have pasted the error message here][1] [1]: https://i.stack.imgur.com/qxJwz.png

Could someone help me build it?



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