What does this mean?: Error : Geometry cache out of date, unable to continue voxeling.

[mypi]

I can't figure out what this means:

Error : Geometry cache out of date, unable to continue voxeling.

[bryn]

The voxeler (re-)uses cached information about the geometry (solids, wires, etc.). It looks up the information for each model entity and emits this message if the cached geometry was not found.

Questions:

• are you running this in the GUI or a script/notebook?
• did you potentially delete (or modify) some of the entities assigned to the simulation (I guess in voxeler settings)?

If you deleted the entity or modified it in the modeler (some operations preserve the instance, while others may create a new instance and delete the old one), this would explain the error. We could improve the error message by providing more helpful instructions.