old-style handler problem

hi everyone

i ve added my own pl language in postgresql. i ve
followed the process mentioned in the documentation.
for the handler function i ve followed the following
template

PG_FUNCTION_INFO_V1(myhandler);

Datum
plsample_call_handler(PG_FUNCTION_ARGS)
{
Datum rv;

...my code....

return rv;
}

then i created a function using my language...but when
i invoked it later on with SELECT funcName() i
received the following error

ERROR: language 25450 has old-style handler

why am i getting this message and how can it be
rectified...thank you

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