Asdoc "conformability error"

[Ray Uddin]

Dear Statalist,

I am getting an error message when running the asdoc command. The first code works fine, but the second code returns:

 func_nested_reg():  3200  conformability error
                 <istmt>:     -  function returned error
r(3200);

 asdoc reg lrhourlywage c.ltotalexports_china#i.schoolinglevel1 ltotaltrade_china ltotaltrade_eu15 ltotaltrade_usa ltotaltrade_mca ltotaltrade_row i.schoolinglevel1 female age agesq married rural i.region i.occupationgroup i.isic1 i.establishmentsize i.year  [fweight = factor], vce(cluster region) nest replace add(Year dummies, YES, Industry Dummies, Yes, Region Dummies, Yes, Occupation Dummies, Yes, Establishment Dummies, Yes) drop(i.region i.occupationgroup i.year i.isic1 i.establishmentsize)

 asdoc reg lrhourlywage c.ltotalexports_china#i.schoolinglevel1 ltotaltrade_china ltotaltrade_eu15 ltotaltrade_usa ltotaltrade_mca ltotaltrade_row i.schoolinglevel1 female age agesq married rural i.region i.occupationgroup  i.isic1 i.establishmentsize [fweight = factor], vce(cluster region) nest add(Year Dummies, YES, Industry Dummies,Yes, Region Dummies, Yes, Occupation Dummies, Yes, Establishment Dummies, Yes) drop(i.region i.occupationgroup i.isic1 i.establishmentsize )

The only difference between the above codes in the i.year.
However, to understand what was going on, I ran the first regression twice changing 'nest replace' to 'nest append' for the second regression and the same error is presented even though nothing changed.

I hope you can help!
Thank you in advance
Ray

[Attaullah Shah]

Please post some example data (using dataex from ssc) to reproduce the error.