Subject: CCL: Gaussian Question

From: "Iain Wallace" <[email-masked]>
Date: Fri, 8 Feb 2002 12:30:47 -0000

Hi all, 

I am running am1 optimisation in G98 on a few molecules. It works fine most times. 
Occasionally it crashes out with the error:

 Incomplete coordinate system.  Try restarting with
 Geom=Check Guess=Read Opt=(ReadFC,NewRedundant)
 Incomplete coordinate system.
 Error termination via Lnk1e in /usr/support/g98/l103.exe.

Does any one know why this happens, and how I can avoid it in future? 

Thanks 

Iain