No this sequence is not correct, although it does not explain the error after optic -so

The correct sequence is (as you can see with w2web (except the lapwso step, which will only be supported in the next release):
> 1. x kgen
> 2. x lapw1
> 3. x lapwso
     x lapw2 -fermi -so
     x optic -so
     x joint
     x kram

A few comments: If one is not sure whether a certain command should take -so or not, always use:

x command -h;  or in your case:  x optic -h, x joint -h, x kram -h

You will see that optic takes an optional -so switch, but joint and kram does no.

If you still get an error after optic -so, you need to check the error messages.

On 09/25/2014 08:32 AM, NARSIMHA RAO wrote:
Dear Prof.Peter Blaha

Thank you very much for your quick response...

I fallowed the suggestion that you have given...my problem calculation of DOS 
with inclusion of spin orbit interaction  solved but optical properties 
calculation with spin orbit interaction giving the fallowing error...

when I am calculating this optical properties I did the fallowing steps through 
terminal only..

Please suggest me weather id did the correct procedure or not...
steps fallowed
1. x kgen
2. x lapw1
3. x lapwso
3. x optic -so
after this step i got an error saying that optics.def failed...then I
carried out my calculation with out so in x optic...it did with out
showing any error....then i continued as fallows...
3. x optic
4. x joint -so
5. x kram -so

with out any error calculation completed....please suggest me weather i
did the correct procedure or incorrect......please suggest me where
should i do corrections.....

Thanking you in advance...

--
/With Warm Regards

/
/*Elaprolu.Narsimha Rao,*
/



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                                      P.Blaha
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