大虾，救我呀！

eeleader

大虾，救我呀！ [复制链接]

指教啊
Error: Top-level design entity "lianxi" is undefined
Error: Quartus II Analysis & Synthesis was unsuccessful. 1 error, 0 warnings
        Error: Peak virtual memory: 179 megabytes
        Error: Processing ended: Sun Apr 04 10:42:56 2010
        Error: Elapsed time: 00:00:01
        Error: Total CPU time (on all processors): 00:00:01
Error: Quartus II Full Compilation was unsuccessful. 3 errors, 0 warnings
这是什么错误