Stepconf does not work after upgrade to master

Hello Guys!

I want to set up a new machine with QtPlasmaC. So i installed the 2.8 Buster iso and upgraded to master by including the packages in synaptic and installing it.
Linuxcnc does work, but stepconf does not. What have i done wrong?


I want to make a config for my pci parallel Cards as this setup is running good at the moment and mesa cards are hard to get right now.

Thank you so much for your help.
Martin