CPXERR_NOT_MIQPCLASS
1029 Not a MIQP or fixed MIQP
#define CPXERR_NOT_MIQPCLASS 1029
Function requires that problem type be CPXPROB_MIQP or CPXPROB_FIXEDMIQP
(that is, it has a quadratic objective).
1029 Not a MIQP or fixed MIQP