Hi Chris,

Same problem: 
Can't call method "attributes" on an undefined value at /usr/local/lib/perl5/site_perl/5.10.0/Xray/ATP.pm line 342.
Can you try running this input and see if it works for you or not? Maybe there is something at my end that is causing this error.

! This atoms input file was generated by WebAtoms 1.8 (Atoms 3.0beta10)
! Atoms written by and copyright (c) Bruce Ravel, 1998-2001
title = WT NiSOD
space = P212121
a =	112.260	b =	113.810	c =	128.60
alpha =	 90.0	beta =	 90.0	gamma =	 90.0
core =	Ni	edge =	K	rmax =	  5.0
atoms
! elem   x          y          z     tag           occ.
  Ni    3.10300   27.70100    6.07300  Ni            1.00000
  S     4.02900   29.69700    6.64700  S             1.00000
  S     1.59500   28.53900    4.74300  S             1.00000
  N     2.45400   25.74800    5.82600  N             1.00000
  N     3.74200   25.63100    2.96500  N             1.00000
  N     4.55400   26.84200    7.01300  N             1.00000
Thanks for your help!

Julius

On Wed, Nov 13, 2013 at 9:23 AM, Christopher Patridge <patridge@buffalo.edu> wrote:
Julius,

I again did not find answer to the error but you could also try the following entity of ATOMS on the web which easily allows a huge number of sites


Chris

********************************************
Dr. Christopher Patridge
Assistant Professor of Chemistry
Dept of Math and Natural Science
D'youville College
320 Porter Ave., Buffalo, NY 14201



On Nov 13, 2013, at 12:19 PM, Julius Campecino <jcampecino@gmail.com> wrote:

Hi everyone,

Did anyone figure out how to fix "Can't call method tag" error and adding sites? Really a novice on fitting and I badly need help on this to get going. Sorry to bother everyone.

Thanks!

Julius


On Mon, Nov 11, 2013 at 8:48 AM, Julius Campecino <jcampecino@gmail.com> wrote:
Hi Chris,

Yeah, I did try "add a site" but it is not responding. Does anyone else experience this problem? Thank you, Chris.

Julius


On Mon, Nov 11, 2013 at 9:51 AM, Christopher Patridge <patridge@buffalo.edu> wrote:
Julius,

While I am not certain what the error means, there is a button displayed right above the atom list which says "ADD A SITE."  I would suggest that having a unit cell as large as you do, along with rather weak scatterers such as N, C, O, and I assume H, it is probably unnecessary to have sites beyond the 3rd shell or so since these contribute negligibly to the EXAFS.

Chris

********************************************
Dr. Christopher Patridge
Assistant Professor of Chemistry
Dept of Math and Natural Science
D'youville College
320 Porter Ave., Buffalo, NY 14201



On Nov 10, 2013, at 1:26 PM, Julius Campecino <jcampecino@gmail.com> wrote:

Hi Bruce,

Here's the screen shot of my work in ATOMS. It's supposed to be more than 7 atoms in the core column but that's also one thing I do not know how to add change and add more atoms.

When I click "Run Atoms", it gives me this error "Can't call method "tag" on an undefined value at C:/strawberry/perl/site/lib/Demeter/Atoms.pm line 668.'' I am using the recent version 0.9.18.2 of the Demeter installer.

Thank you for your help!

Julius
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