Originally posted by: khadeejah

i had a warning that , Element "ctinv1"(for example ) has never been used.

what does that indicate?, does it mean that the constraint is covered already by another one.

Hi,

it could mean that the label is not at the right place and will not be used.

Can you copy what is around ctinv1 ?

regards

Originally posted by: khadeejah

Hi Alex, Below is the constraint where i had the "warning"

forall (t in periods: t-1 in periods)
ctinv22: CHt[t-1]+ sum(i in MTOprod)pi[i]*Dit[i][t]+ sum (j in MTSprod)pj[j]*SMjt[j][t]-sum (t in periods, f in fabric)(rf1[f]*FQf1t[f][t]+rf2[f]*FQf2t[f][t])
           - sum (s in stages, i in MTOprod)(RCis[i][s]*RQist[i][s][t]+OCis[i][s]*OQist[i][s][t])
               -sum (s in stages, j in MTSprod)(RCjs[j][s]*RQjst[j][s][t]+OCjs[j][s]*OQjst[j][s][t]) ==CHt[t]; 

Originally posted by: khadeejah

Any clue,

i still have the same warning!!

Originally posted by: khadeejah

i copied it above!

Originally posted by: ShaCplex

Hi all,

that warning means that you have declared a parameter / tuple / variable and you have not used it in your model.

no problem with that. you could comment that if you don't want it in your model.

thanks

Originally posted by: khadeejah

but all the parameters and decision variables , i've used them in my model!,

and this constraint is important