Pro/Program Fails Following 'Publish to CAD'

[GrahamV]

Hi, 

We'd like to take advantage of the Windchill 'Publish to CAD' functionality, which allows a CAD structure to be driven from a WTPart structure, however we're hitting a regular problem where a part with dependencies is removed from a structure. Steps to recreate the problem...

1) Create a Creo assembly of 2 sub components, with the 2nd component assembled to the 1st...

2) Create WTParts for all components, and build the WTPart structure...

3) Remove the 1st component from the WTPart structure, and use 'Publish to CAD' or 'Compare to CAD Structure' to drive the changes into the CAD structure...

4) Open the updated CAD structure in Creo, the changes are correctly shown...

Everything works correctly until this point, however after accepting the changes, Creo reports an error and rolls back the changes...

It seems Creo is unable to deal with a component being removed where it has a dependency (assembly constraint, sketch, datum, xsec etc.), this would seem like an obvious situation that would be dealt with by just leaving the dependency as a failed feature, so hopefully this is just a config setting that's causing it to error. Running Creo 5.0.3.0, unfortunately this outside the extended supported period so we have been unable to get any PTC suggestions.

Is anyone able to recreate this issue (successfully or not)?

Thanks in advance.

[VladimirN]

Here are several articles that match this error:

• "When trying to regenerate a specific model, an information window appears with the statement "!***ERR: in (model name) cannot evaluate expression (expression)" in Creo Parametric": https://www.ptc.com/en/support/article/CS120201
• "Getting error "Aborting regeneration due to failures executing Pro/Program" when editing design using Pro/Program in Creo Parametric 2.0": https://www.ptc.com/en/support/article/CS145738
• "Pro/Program runtime error "Aborting regeneration due to failures executing Pro/Program" throwing error message: "the model to be added is non-existent or not interchangeable" when trying to regenerate assembly in Creo Parametric": https://www.ptc.com/en/support/article/CS202330

[GrahamV]

Hi Vladimir, 

Thanks for the links, I'd not seen those ones before, unfortunately none of them help in this case, as the Pro/Program is modified automatically by Windchill/Creo (I cannot even see the program it is trying to run, because the changes are rolled back before I am able to the Pro/Program menu).

This issue is very repeatable on our system, is anyone able to try the above steps to confirm it's not unique to our configuration?

Thanks

[VladimirN]

Submit your issue here: https://www.ptc.com/en/support/case-logger 

[GrahamV]

Hi Vladimir, 

I've already submitted a support case, however it has been closed because Creo 5 is beyond Sustained Support (my understanding is that support cases are only possible for the first two years of Sustained Support, which means support cases for this version were only answered until March 2021).

Thanks