flat pattern and A side definition

[Anonymous]

i am am making some editions to my part but i seem to be getting 'A side definition' when i make a flat pattern, and this brings along an error which reads 

im not sure what's causing this. Please help. Apologies if this is vague. 

Regards

Huw

Just to clarify, i do not want the 'A side definition'

[JDMather · Accepted solution]

It appears that you have a derived component - did you set the correct Thickness?

Why did you use an Extrude feature in a sheet metal part?

What happens if you delete the Flat Pattern an A-side nodes, pre-select a face and click Flat Pattern again?

Have you installed all Service Packs and Updates?

Can you attach the file here?

[Anonymous]

indeed it is the correct thickness

extruded in this image as i tried face and it did the same thing. so i was experimenting.

when i pre select face it still does it. 

i have now installed updates and packs and will see very soon whether it works or not!

Not sure work is going to let me attach the file, i know this is unhelpful!

thanks for the swift reply

[Anonymous]

sorted, needed an update.

thanks