Troubleshooting Hacks

VIVE Headset

If the HTC Vive headset isn’t working at all:
  • USB: Unplug the usb cable connecting the Headset with the computer you are using. Simply plug back in - in case another port is used, he drivers are newly chosen by Windows.
  • Restart SteamVR: Click the SteamVR drop-down menu, select Settings. Choose the Developer tab, scroll to the bottom and click Reboot Vive Headset.
  • Restart Steam: This works in case Steam tried to update SteamVR and failed.

If there are problems with tracking:

  • Make sure the lighthouses can both see each other and at least one of them can see the headset at any point in time.
  • If controllers aren’t tracked make sure their batteries are charged. You can also sync them manually by right clicking on one of them in SteamVR.
  • If the tracking is off or doesn’t work at all, try doing the SteamVR room setup.
If the position is not optimal:
  • Open the SteamVR drop-down menu, click Run Room Setup.


Unity sometimes displays unexpected behaviour contrary to what is coded and/or expected. First advise: Restart Unity - this may sound banal, but it would have saved our team at least an hour of debugging.


  1. If gazebo fails to start server or they die unexpectedly:

    Kill the gazebo server and restart it.

    killall gzserver
    killall gzclient

    Another possible fix is to kill Roscore

    killall roscore
  2. In case Models could not be found - which is often the reason when simulations take forever to load:

    Export the gazebo paths to the model: General Usage/Getting started/

  3. If you are still having trouble, please contact the Roboy Team. We will glady help you to set up your RoboyVR experience.