I can't create artwork files

[conavar]

Hi dear all,

I'm using allegro orcad PCB editor 16.6 hotfix February 2013 Updates.To this day has never been a problem but today I can't create a gerber file.
I am getting an error message like this : “ERROR: aborting film - Undefined aperture symbol, cannot continue.” Please look attached screenshot.
who can help me with my problems?

 

[SHABU]

Do database check and update drc and try it.

- - - Updated - - -

Do database check and update drc and try it.

 

[conavar]

The problem was solved. I found and added the library symbol that is undefined...