hfss仿真出现这个问题怎么回事

 
错误提示如下： 
    [error] Port refinement, process hf3d error: Too few conductors were found on port 1.  There should be one conductor for each terminal, with one additional reference 
      conductor.  Unintentional contact between conductors may cause this error.. (11:18:34 上午  十一月 25, 2013) 
    [error] Simulation completed with execution error on server: Local Machine. (11:18:34 上午  十一月 25, 2013) 
求高人解答啊。

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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。