微带滤波器用HFSS仿真时出现错误

HFSS完全新手， 我要仿一个低通微带滤波器，模型如上，在HFSS上运行后出现错误，错误提示如下：
HFSSDesign1
[error] Initial mesh, process mesh3d : Error while opening or writing the mesh files. (3:16 下午 五月 28, 2009)
[error] Simulation completed with execution error on server: Local Machine. (3:16 下午 五月 28, 2009)
[error] Mesh generation has failed. Specific details may be found in 3D Modeler>Model Analysis>Show Analysis Dialog>Last Simulation Mesh. (3:17 下午 五月 28, 2009)
[error] Simulation completed with execution error on server: Local Machine. (3:17 下午 五月 28, 2009)

大虾们帮帮我吧，可怜的我时间不多了 感激不尽啊

申明：网友回复良莠不齐，仅供参考。如需专业解答，请学习易迪拓培训专家讲授的HFSS视频培训教程。