I want to derive the Hamiltonian of the ion molecule $H_2^+$ by making use of Jordan-Wigner map. Thus, I used qiskit nature. I wrote down the same command given in qiskit nature. The only difference is that I changed the charge number from 0 to 1. Then it generates following error message
Input In  in <cell line: 2> second_q_op = es_problem.second_q_ops() File /opt/conda/lib/python3.8/site-packages/qiskit_nature/problems/second_quantization/electronic/electronic_structure_problem.py:94 in second_q_ops driver_result = self.driver.run() File /opt/conda/lib/python3.8/site-packages/qiskit_nature/drivers/second_quantization/electronic_structure_molecule_driver.py:179 in run return driver.run() File /opt/conda/lib/python3.8/site-packages/qiskit_nature/drivers/second_quantization/pyscfd/pyscfdriver.py:410 in run self._build_molecule() File /opt/conda/lib/python3.8/site-packages/qiskit_nature/drivers/second_quantization/pyscfd/pyscfdriver.py:460 in _build_molecule raise QiskitNatureError("Failed to build the PySCF Molecule object.") from exc QiskitNatureError: 'Failed to build the PySCF Molecule object.' Use %tb to get the full traceback."
If you know any method to fix it, please teach me. Thank you for your time.