急求：ansys模拟二维静磁场不收敛

CAD模型导入ansys，模拟二维静磁场，怎么都不收敛，提示：Using iteration per substemp may result in unconverged solution for nonlinear analysis and program may not indicate divergence in this case. 请问这是怎么回事，急求啊 多谢！