No BARO and no MAG from r1_rover in gazebo

[matiasguzmanp]

I'm trying to launch the simulation of the r1_rover out-of-the-box following this page.

In first instance I get this error

ERROR [simulator_mavlink] poll timeout 0, 22
poll timeout

I found that to solve this issue (or at least to circumvent it) we can change the parameter of lockstep in the sdf file of r1_rover and in the config of PX4. Once I did this i got another error.

ERROR [vehicle_air_data] BARO #0 failed: TIMEOUT!
ERROR [vehicle_magnetometer] MAG #0 failed: TIMEOUT!

I didn't found any solution to this error, can I get any help ? It would be much appreciated.