It means that the version of the functions in your schema does not match the compiled version of slony.  I'm guessing you need to run "update functions"




>________________________________
> From: Lakshmi Priya <gangulynj at gmail.com>
>To: slony1-general at lists.slony.info 
>Sent: Wednesday, 11 April 2012, 8:24
>Subject: [Slony1-general] Error in slony
> 
>
>Can any one say what this error meant..??
>
>
><stdin>:8: loading of file /usr/local/pgsql/share//slony1_funcs.sql: PGRES_FATAL_ERROR ERROR:  Slonik version: 2.0.6 != Slony-I version in PG build 2.1.1. 
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