# How to start voxl-vision-px4 service

Source: https://forum.modalai.com/topic/1364/how-to-start-voxl-vision-px4-service
Category: Development Drones (https://forum.modalai.com/category/44/development-drones)
Tags: rb5
Posted: 2022-09-21 10:24:37 UTC by Kevin
Replies: 2 · Views: 905

## Kevin · 2022-09-21 10:24:37 UTC

I got the following error message in my RB5 drone.
How can I solve this error? I want to fly my RB5 with VIO for Indoor Navigation.
rb5:/etc/systemd/system$ systemctl status voxl-vision-px4 
● voxl-vision-px4.service - voxl-vision-px4
   Loaded: loaded (/usr/bin/voxl-vision-px4; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Wed 2022-09-21 10:04:57 UTC; 6min ago
  Process: 8418 ExecStart=/usr/bin/voxl-vision-px4 (code=exited, status=255)
 Main PID: 8418 (code=exited, status=255)

Sep 21 10:04:57 m0052 voxl-vision-px4[8418]:     frame:              tof
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]: voa_input #4
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]:     enabled:            1
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]:     type:               rangefinder
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]:     input_pipe:         rangefinders
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]:     frame:              body
Sep 21 10:04:57 m0052 systemd[1]: voxl-vision-px4.service: Main process exited, code=e
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]: =========================================
Sep 21 10:04:57 m0052 voxl-vision-px4[8418]: loading extrinsics config file
Sep 21 10:04:57 m0052 systemd[1]: voxl-vision-px4.service: Failed with result 'exit-co

## Reply by Steve Turner · 2022-09-21 19:05:40 UTC

@Kevin 

I recommend doing a `systemctl stop voxl-vision-px4` followed by `voxl-vision-px4 -d 0` to enable debug output and myself or someone from the ModalAI team might be able to help more.

## Reply by Kevin · 2022-09-22 07:12:30 UTC

@Steve-Turner Thanks. After run the voxl-vision-px4 -d 0, I doing the following: and the voxl-vision-px4 run normal, But I can't get the ODOMETRY mavlink telemetry in my QGroundControl, How can I fix this issue?

```
rb5:/etc/modalai$ voxl-configure-extrinsics 
Starting Wizard
which preset extrinsics file would you like to use?
1) leave_alone		    5) starling_v1_voxl_flight
2) m500_flight_deck	    6) starling_v2_voxl2
3) seeker_v1_voxlcam	    7) sentinel_v1
4) rb5_flight_v1	    8) custom
#? 4
wiping old extrinsics config file
copying /usr/share/modalai/extrinsic_configs/rb5_flight_v1.conf to /etc/modalai/extrinsics.conf
loading and updating file with voxl-inspect-extrinsics -q
done configuring extrinsics