CPXERR_BAD_INDCONSTR

1439 Line %lld: Illegal indicator constraint

#define CPXERR_BAD_INDCONSTR 1439
Indicator constraints are not allowed in the objective, nor in lazy constraints, nor in user cuts sections. The indicator variable may only be compared against values of 0 (zero) and 1 (one). The MPS format requires that the indicator type be "IF" and that indicator constraints be of type 'E', 'L', or 'G'.