st: function evaluator program syntax error

[Carmen Fillat <cfillat@unizar.es>]

Dear colleagues,
I am trying to estimate by using non linear squares (nl) a long  
equation. So i have to use the Function Evaluator Program before nl.
I follow the help menu but I get the message
"nlfijos5 returned 198
verify that nlfijos5 is a	function	evaluator program"

Sure i have a syntax error I do not see..but I tried everything and i  
cannot find it. I sum up what i do in case someone can tell me what  
the mistake might be. Probably it is at the beginning of the program.  
Thanks all.
--
program nlfijos5
	syntax varlist (min=1 max=116) if  , at(name)
         local gtotalimports: word 1 of `varlist'
         (here the rest of 116 variables in the equation, because of  
fixed effects and time dummies)
...
// Retrieve parameters out of at
      tempname  a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 ...
      scalar `a2' = `at'[1,1]
*...(all parameters i have)
//Some temporary variables
	tempvar time  fijos eq
	generate double `time' =  `a2' * `dy2' + ...
....(my temporary equations and the equation to be estimated)...
end

nl fijos5 @ y x1 x2....variables, parameters and initial values
---





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