URCap External Control gives "Unsopported operand type(s) .."

Technical Questions
1

Hi,
I use Polyscope 5.5 on UR5e.
URCap External Control version: 1.0.5
External PC’s IP: 10.42.0.178
UR5’s IP: 10.42.0.109

When running the External Control program, we get a pop-up
“Type error: Unsupported operand type(s) for *: List and Float”

Any pointers will be useful.
Thanks
Arvind

2

Showing the code you’re executing that throws that error would be helpful, but sounds like you can’t use lists and floats. Are you trying to send it a pose but forgot the “p” in front of the array?
[1.23, 4.56, 7.89, 0, 0, 0] is a list of floats. p[1.23, 4.56, 7.89, 0, 0, 0] is a Pose

3

@eric.feldmann , there was no code running. I was just attempting to connect from UR to the external PC’s IP address which was running ROS Humble.

This was resolved by moving down from ROS Humble to ROS Iron. The error appeared to be about compatibility between the Polyscope version, URCAP External Control Version and ROS version used.