d45f689cc7b8cc4509ceeb43fd7da78baa01a49a,qiskit/optimization/algorithms/grover_optimizer.py,GroverOptimizer,solve,#GroverOptimizer#Any#,90

Before Change

            raise AttributeError("The quantum instance or backend has not been set.")

        // check compatibility and raise exception if incompatible
        msg = self.get_compatibility_msg(problem)
        if len(msg) > 0:
            raise QiskitOptimizationError("Incompatible problem: {}".format(msg))

        // convert problem to QUBO
        qubo_converter = QuadraticProgramToQubo()
        problem_ = qubo_converter.encode(problem)

        // convert to minimization problem

After Change

        if self.quantum_instance is None:
            raise AttributeError("The quantum instance or backend has not been set.")

        self._verify_compatibility(problem)

        // convert problem to QUBO
        qubo_converter = QuadraticProgramToQubo()
        problem_ = qubo_converter.encode(problem)

Instances