[MSG] yarprun successfully executed on icub-head, but status is unavailable, icon didn't turn green

[jimingda]

https://icub-tech-iit.github.io/documentation/icub_starter_kits/first_steps/#laptop-commands
On nodes :
please select both icubsrv and icub-head
click GREEN play button.
Both TV icon should turn from RED to GREEN

i followed the guide steps, only icubsrv icon turn from red to green, icub-head icon didn't change but [MSG] yarprun successfully executed on icub-head.
As in below pic

[jimingda]

I think i have fixed this problem by press the Motor Lighting Indicator on iCub before launch yarpserver and yarpmanager.

[pattacini]

The motor button turns on the embedded boards, so it has nothing to do with yarprun, which instead runs abord the icub-head machine. Thus, you ought to make sure that icub-head is up and running (the CPU button is 🟢) and that there are no other instances of yarprun ("zombie" processes that you can check via ps aux).

Also, icub-head needs to see the YARP server, so you can check that out by doing:

yarp where

from a terminal on icub-head.