Hi, everyone

I tried to implement a stochastic programming problem in GAMS according to the example file in GAMS EMP library, I did almost the same as the example, but when I ran my file, it gave me all 0 result. And when I traced back to the log, it said:

=C*** Error processing empinfo file

=C*** Problem in getObjects

=C*** Failure calling solver: LINDO (rc=1)

Could anyone tell me what will cause"Problem in get Objects"? Thanks a lot!

Below is my EMP file (x,Y and z are variables, expo4 are normal distributed parameter, C is the obj. value, and Mass1-4, Level,z_constraint, obj are my equations):

file emp / ‘%emp.info%’ /;

put emp ‘* problem %gams.i%’ /;

*put emp ‘stage 2 expo4 x Y z C Mass1 Mass2 Mass3 Mass4 Level z_constraint obj’;
$onput
randvar expo4 normal 1.5 1.5*0.01;

stage 2 expo4 x Y z C Mass1 Mass2 Mass3 Mass4 Level z_constraint obj

$offput

putclose emp;

set s scenarios /s1*s100/;
parameter s_expo4(s) coeff. by scenario
srep(s,*) scenario attributes / #s.prob 0 /

s_x(s,i), s_Y(s,j), s_z(s,j,k), s_C(s) other key variables by scenario;

Set dict / s .scenario.‘’

‘’ .opt. srep

expo4 .randvar. s_expo4

x .level. s_x

Y .level. s_Y

z .level. s_z

C .level. s_C /;

option emp = lindo;

$echo STOC_NSAMPLE_STAGE=100 > lindo.opt

Metabolic_stochastic.optfile = 1;

solve Metabolic_stochastic max C use emp scenario dict;

display s_expo4,s_x,s_Y,s_z,s_C;

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