topic Re: Missing instance in assembly file in 3D Part & Assembly Design

Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:13:34 GMT

I have a assembly model that is failing when I open it. I says that a model is missing. An instance of a family table was obsoleted, but I do not see where in the assembly that the missing part is suppose to be. When I go back into the family table, and temporarily add the instance it is looking for, the assembly model is "happy" but I still do not see where the model it was looking for is supposed to be. Here is the tree and model info screen shots both before and after adding the missing instance back into the family table. Again, I do not see where the part is suppose to be. Is there a way that it could have been hidden?

Assembly before the missing instance was recreatedAssembly after the missing instance was recreated

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:24:35 GMT

Try looking at the reference viewer. Sometimes it shows broken links or missing information that you can't find elsewhere.

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:25:51 GMT

Before or after "recreating" the missing instance.

Re: Missing instance in assembly file

kdirth — Thu, 08 Apr 2021 19:27:15 GMT

Is it in one of the groups?

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:27:22 GMT

This is before I recreated the missing instance.

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:28:16 GMT

Good question.

I would have to say try whichever you have open first and see if it shows anything. Then try the other.

I would expect it show better without.

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:28:19 GMT

It is not in one of the groups nor in any of the subassemblies. I expanded everything all the way just to check.

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:35:53 GMT

RMB on the dotted line there and select INFO and see if you get any clues

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:41:01 GMT

It looks like it is being used as a reference, but I am not sure how?

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:44:40 GMT

Maybe try with the instance re-created. Maybe it will give you a clue...maybe??!?!

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:46:33 GMT

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:48:26 GMT

Does it look like there is some sort of circular reference?

Comp id 877 (1013_3071.prt) -> 1189_2000.asm -> 1013_3071.prt

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:51:19 GMT

Trail by error.

Look at another component (one you know its there and is all good) and see if it says the same thing.

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 19:53:25 GMT

Here is an instance that is from the same family table - used twice before the "missing" instance.

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 20:00:27 GMT

Even if I could just delete it after I recreate it, I would be happy, but I cannot find it other that using the reference viewer or model information.

Re: Missing instance in assembly file

StephenW — Thu, 08 Apr 2021 19:58:09 GMT

Welll, we've passed the level of my ignorance!

If there are any other failures or anything in the model, that would be where I would look.

I really haven't gotten anything useful to say know sooooo...if it was my problem, I would cuss a little, then maybe recreate the assy if it was easy enough.

Re: Missing instance in assembly file

kdirth — Thu, 08 Apr 2021 20:01:33 GMT

Looks like it is Feat ID 877 in the assembly.

May be the result of replacing a part with "Remember These Components" checked. What does the reference look like when instance is restored? I there a trash can to remove it.

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 20:07:31 GMT

It has changed the dotted line to a solid line. Where might I find that trash can?

The (2) instances of the 1013_3080 are from the same parent model and typically it would have been replaced by "Family Table". If I come across other errors, I usually just recreate the missing instance and swap it out for the instance that it is suppose to be, but since this isn't in the family tree, I am at a loss.

Re: Missing instance in assembly file

kdirth — Thu, 08 Apr 2021 20:19:34 GMT

Looks like this:

Re: Missing instance in assembly file

Dale_Rosema — Thu, 08 Apr 2021 20:25:49 GMT

There is no trash can to click on.