some Error when i run the crazyswarm.launch

[LESLIEWANGer]

hello @whoenig
I installed the noetic and crazyswarm on ubuntu 20.04 as guidance,also I can receive the information about cf's battery and position via vrpn.
But when i run crazyswarm.launch.nothing happens,I followed the NatNetSDKCrosspatform,it occuerd.

the last line means "NO that file or dictionary".
I think the crazyswarm doesn't receive the position information.
Does it mean I should install natnet on my ubuntu or update the motive on windows(its version is 1.9)?
Thanks!

[whoenig]

mcr doesn't exist anymore in the latest version (I need to update the readme). The only relevant part is the output of natnettest.

Does the mocap_helper.launch file work for you?

[LESLIEWANGer]

emmm
it also doesn't work .
The rviz appears after running mocap_helper.launch but no plane on it.
It seems that the Motive needs to be updated ?

[whoenig]

mocap_helper.launch only prints data on the screen and doesn't start rviz.
This seems to be a bug (see the other discussions). You can either try to fix it and send a pull request or upgrade Motive. It's difficult for me to fix without access to an old Motive version.