Circular references all but baked in the cake in creo 4.0

[dbutcher]

So i keep getting circular references that in the past would never have resulted as such.

AND the common theme is always some elusive dimension that doesn't even exist.......ie:

  1 CIRCULAR REFERENCE LOOPS FOUND

   LOOP #  1

   Depth of loop is 4

Feature number 53 (COMPONENT, id = 5562)

  in model 171757_42617_TOP_HSNG refers to:

Feature number 5 (COPY_1, id = 284)

  in model HH_SUB_INSERT_TOP refers to:

Feature number 54 (Dimensions, id = 4826)

  in model 171757_42617_TOP_HSNG must follow after:

Feature number 53 (COMPONENT, id = 5562)

  in model 171757_42617_TOP_HSNG - circle closed.

THERE IS NO FEATURE 54, THERE IS NO DIMENSIONS, ID = 4826 ANYWHERE.

And then the "information center" is all but useless.....when i regen and the error shows up i open the "information center" that tells me NOTHING WHAT SO EVER.....so what is the point of having it?

I've never had to worry about circular references before as i know what i'm doing (at least i thought i did) but now i get them in almost every assembly and it's always some dimension in a feature that is past my model tree feature count.......WTF is going on?

[TomU]

Definitely worth creating a case with tech support.  Do you have maintenance?  If not, upload a sample part with this issue and I'll be glad to create a case myself.

[mender]

I too would recommend making a case for it.

[anewbauer]

In working with 4.0 i noticed that PTC Has done something with the references. It was bad to begin with and now its just messed up.

[dgschaefer]

Any news on this?  This is one of the issues that has me hesitating to consider Creo 4.

[dbutcher]

I just haven't had the time to follow up. That and i'm upgrading my computer so i'll be downloading the latest build and i'm hoping that makes a difference.

I'm picking up the new puter Friday so hopefully by 2 weeks tops i'll know more.

[mender]

I continue to recommend filing a case.  Looking at the internals, we could probably straighten this confusion out quite quickly.

[ptc-107125]

Has anyone solved this issue? I have 44 circular references and my regeneration time has come to a halt. I have lots of experience dealing with "normal" circular references, but this has me stumped.

44 CIRCULAR REFERENCE LOOPS FOUND

LOOP # 1

Depth of loop is 5

Feature number 68 (COMPONENT, id = 27691)
in model 181812_8777 refers to:

Feature number 152 (Dimensions, id = 25659)
in model 181812_8777 must follow after:

Feature number 142 (SKETCH_2, id = 43207)
in model 181812_8777 refers to:

Feature number 88 (COMPONENT, id = 28109)
in model 181812_8777 must follow after:

Feature number 68 (COMPONENT, id = 27691)
in model 181812_8777 - circle closed.

[TomU]

I'd really suggest sending a copy to PTC for evaluation.  Do you have active maintenance?

[StephenW]

It's impossible to diagnose without the model. The text is refering to specific model features so...

I would start tihe sketch_2 (feature #142) and see if any of the references are external.

My common way of creating them is to assemble a part based on datums, create geometry based on references from the assembly and then I redefine the original component placement from the datums to geometry. BOOM, CRC created.

One of my troubleshooting methods is to separate a suspected part from the assembly (new folder). Then, in a clean session of Creo, open the part and see what kind of references it is looking for.