st: Conformability error following margins command

[Paul Spin <pl705094@dal.ca>]

Dear Statalisters,


I am working with Stata11/SE for Windows. I am attempting to estimate  
partial effects for each covariate of a multinomial logistic  
regression. Unfortunately I keep running into a conformability error -  
r(503) - after running the margins command. My data is in a secure  
location, so I can't show you my log file, but here are the commands  
I'm trying to run (variables are examples):


--------------------------

svyset [pw=weight], vce(brr) brrweight(wboot*)
xi:svy: mlogit unmetneed i.age i.sex, b(0)

estadd margins, dydx(*) atmeans predict(outcome(1))

-------------------------
The first two lines are executed, but then <estadd margins> results in  
the conformability error.

I've also tried the following

------------------------------------------
margins, predict(outcome(1))

margins
------------------

only to receive the same error message. Margins works only if I ignore  
complex survey design (if I exclude the svyset command).

I'm not sure how to solve this problem, so any feedback is much  
appreciated. Thanks,


Paul 
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