GAMS World Forum

I keep getting the error on the last 2 lines, but not the cost line and i dont really get why, any help would be much appreciated. `Sets i POSITIONS / P1, P2, P3, B, DG, V1, V2, V3, H, F / ; alias(i,j) ; .... Variables X(i,j) wether node i and node j are connected [binary variable] C total cost of t...