st: RE: gmm2s option not allowed

["Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>]

Suryadipta,

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu 
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of 
> Suryadipta Roy
> Sent: 14 January 2008 22:52
> To: statalist@hsphsun2.harvard.edu
> Subject: st: gmm2s option not allowed
> 
> Hi,
> 
> I am getting the following message when I am trying for the 
> gmm2s option:
> 
>  use http://www.stata.com/data/jwooldridge/eacsap/mroz.dta
> 
> . ivreg2  lwage exper expersq ( educ= age kidslt6 kidsge6), 
> gmm2s option gmm2s not allowed r(198);
> 
> Can someone please suggest a remedy to this?

Sounds like your ivreg2 is not up-to-date.  Latest version is 2.2.08.