Issue with RG2 Grippers After UR5 CB3 Software Update

Hello everyone,

I’ve been successfully using two RG2 grippers on a UR5 CB3, but after updating the robot’s software to the latest version available 3.15.8, my existing programs no longer work. I’m now receiving the error message shown in the attached screenshot.

The message mentions something about “UndoRedoManager,” but I’m not sure where to find that or what it refers to. Do I need to update the RG2 URCap to be compatible with the new software version? Or is there a new programming approach I should be using?

Any guidance would be greatly appreciated.

Thanks,

UndoRedoManager is something inside the URCAP, not something you have access to. Reach out to the creator of the CAP with this error.

You’ll need to upgrade your OnRobot URCap as well, the version you are using is not compatible with 3.15. At some point during polyscope 3 releases, I forget exactly when, a change was made to how program nodes were able to save data, they had to do so inside a new environment, which us the UndoRedoManager mantioned in the popup. This was a breaking change to older URCaps, as a result you will need the latest legacy RG2 URCap (I think it is v1.10 off the top of my head) you can find it on the legacy downloads section of OnRobots website.

Thanks Sam! That worked.