ilogic scale rule error

Dan_Margulius — Tue, 18 Oct 2011 16:22:03 GMT

Hello,

I have the following error sometime :

iLogic Rule Error in rule: Scale1, in document: _107824000-TEST6.idw

Object reference not set to an instance of an object.

System.NullReferenceException: Object reference not set to an instance of an object.

at LmiRuleScript.Main()

at Autodesk.iLogic.Exec.AppDomExec.ExecRuleInAssembly(Assembly assem)

at e.a(String A_0)

Does anyone what this is?

Thanks,

Dan

Re: ilogic scale rule error

Dan_Margulius — Wed, 19 Oct 2011 15:10:15 GMT

Maybe a picture will help.

Re: ilogic scale rule error

SteveX82 — Thu, 08 Dec 2011 14:02:41 GMT

I'm having the same problem. Try as I might, I've been unable to duplicate the error in a simple model & drawing package that I could share with the forum.

I have noted the following:

The error occurs ONLY when I have my "Rescale" rule triggered to run with "After Open".
The error occurs in my template drawing, which references a template skeletal model. After subsequently modifying the template model with iLogic, I get the error message when opening the drawing. It works fine with the original template model, and I can run the rule manually after the drawing is opened without any trouble.

It seems that the rule is auto-firing before the drawing and/or model have fully loaded, and Inventor complains that it can't access the info it needs (in my case, it might be the referenced model parameter I am accessing in the rule). This error message halts the entire loading process dead in its tracks, and the drawing views fail to update and reflect the changes to the model. I can manually highlight/update each base view, but then dimensions disappear and/or come in crooked and incorrect.

If the event-trigger is switched off, I can run this rule all day long without issue.

I hope this helps narrow down the problem, or at least gets the attention of the people who might be able to help.

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