求助，在HFSS仿真是出现了这个提示是什么意思？

 Fast sweep setup, process hf3d: '0' conductors touch lumped port '1', typically a lumped port contains 2 conductors.  Please verify conducting boundaries and objects are correctly assigned and touch the port.  If a Radiation boundary touches the port and it is desired for use during the port solution, select 'Use Radiation Boundary on Ports' under the Advanced tab in the Solution Setup.