Can't create Iso's

[Anonymous]

I'm trying to create Iso's using a slightly modified SPOOL_ANSI_B title block.  The modifications are mostly changing text size, moving the north arrow and moving the weld list.  when I attempt to create an Iso I get the following error

Iso Creation start time : 11/1/2013 2:00:57 PM
Iso Creation finish time: 11/1/2013 2:01:02 PM
Duration : 00:00:04
Output folder : C:\Users\aboner\Documents\Project 1\Isometric\Spool_ANSI-B\ProdIsos\Drawings
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1 Isometric(s) were not able to be created:
C:\Users\aboner\Documents\Project 1\Isometric\Spool_ANSI-B\PCFs\3-1-1.pcf
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INFO - Loading input: 'C:\Users\aboner\Documents\Project 1\Isometric\Spool_ANSI-B\PCFs\3-1-1.pcf'
INFO - Loaded '1' model(s).
INFO - Processing: '3-1-1'.
FAILURE - Object reference not set to an instance of an object.
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What is going on?  Why can't I create iso's?

[martinTstewart_Adsk · Accepted solution]

Try running an Iso on this with an unmodified, out-of-the-box Spool_ANSI-B template.  Do you still get the error message? If not- if it does work with the unmodified template- then I’d recommend recreating your modified title block one item, one step at a time. Save it after each modification and test it on an Iso on each step to retrace what caused the problem.  If you still get the error with the out-of-box template, then it’s likely not your customized template, and you’ll need to look into other causes, such as something wrong in the model.

(If this answers your question, please mark it as an Accepted Solution.)