st: Qs-mata run-time error

[Manisha Tharaney <mtharaney@gmail.com>]

I am a relatively new user on Stata. I am working on a DHS data set.  
Every time I use the mean command for any variable or the svy command  
I get a message which says mata run-time error.  I tried the set mata  
1000 command but it did not work.
What can I do?
Thanks
MT
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