virtuoso仿真出现ERROR (OSSHNL-514)，该怎么解决？

ERROR (OSSHNL-514): Netlist generation failed because of the errors reported above. The netlist might not have been generated at all, or the generated netlist could be corrupt. Fix the reported errors and regenerate the netlist.

      ...unsuccessful.

Virtuoso 6.17 仿真出现如上错误，原理检查只是出现警告，请问这要怎么解决？谢谢