ERROR [simulator_mavlink] poll timeout 0, 0

PX4 Autopilot
1

Hi! I’m using PX4, Mavros,Airsim and UnrealEngineSimulator. UnrealEngineSimulator is executed in Windows 11 and the rest is executed in Linux 20.04.

after some simulation time, I get this error in the PX4 window:

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But there comes a point that the connection between PX4, mavros, Airsim is closed with the simulator:

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Can anyone know why this error occurs? It is closed by the Airsim parameter in the settings.json “Lockstep Simulation”, how can it be solved?

Thanks in advance. Best regards

2

This would happen if a message between PX4 and simulator ever gets lost and hence it gets out of sync/lockstep.

Have you tried disabling lockstep?

3

Yes, disable lockstep in Airsim settings:

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However, I keep getting the error

4

Have you also disabled it on the PX4 side? I’m not sure if you have to but I’d try it.

5

I have disabled Locktep in PX4 by following PX4 Lockstep - AirSim . I also change the “ClockStep” param in Airsim to “”.

And the vehicle is not able to take off with the px4 takeoff command and ends up crashing to the ground. I don’t know if it has something to do with the scheduler time.

6

I would ask someone that maintains AirSim.