Decision Optimization

Hi all,

I am new to IBM ILOG CPLEX, I have a constraint below that always returns "cannot extract expression" with five errors.

forall(ti in t, v in vehicle, a in agev, vmt in vmtgrp)   sum(s in segment) (MILECONSUMP[ti][s][v][a][vmt]/MILEAGE[ti][s][v][a] )==Fuel[ti][v][a][vmt]/(1-UfactorPHEV[v]);  //MILEPROD
​

I wonder what goes wrong with this constraint, how can I correct it?

Thanks,
Jia

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Jia Zhong
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#DecisionOptimization

Duplicate of this question.

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Paul Rubin
Professor Emeritus
Michigan State University
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Original Message:
Sent: Tue March 15, 2022 01:58 PM
From: Jia Zhong
Subject: CPLEX & OPL Cannot extract expression

Hi all,

I am new to IBM ILOG CPLEX, I have a constraint below that always returns "cannot extract expression" with five errors.

forall(ti in t, v in vehicle, a in agev, vmt in vmtgrp)   sum(s in segment) (MILECONSUMP[ti][s][v][a][vmt]/MILEAGE[ti][s][v][a] )==Fuel[ti][v][a][vmt]/(1-UfactorPHEV[v]);  //MILEPROD​

I wonder what goes wrong with this constraint, how can I correct it?

Thanks,
Jia

------------------------------
Jia Zhong
------------------------------

#DecisionOptimization