Some pins have incomplete I/O assignments

Error: Current module quartus_asm ended unexpectedly
Error: promoted from Critical Warning: Timing requirements not met
Error: promoted from Critical Warning: Timing requirements not met
Error: promoted from Critical Warning: Timing requirements not met
Error: Quartus II 64-Bit TimeQuest Timing Analyzer was unsuccessful. 3 errors, 0 warnings
        Error: Peak virtual memory: 364 megabytes
        Error: Processing ended: Sun Mar 08 14:50:25 2015
        Error: Elapsed time: 00:00:08
        Error: Total CPU time (on all processors): 00:00:02
Error: Quartus II Full Compilation was unsuccessful. 6 errors, 1 warning

持续把你的帖子顶到第一位 这样在线工程师看到了  就会解答的你问题

不用了，作为初学者，我已解决了
1，上面主要讲的是时钟没有设置，点击timequst(时钟图标）出现设置
a点击create timeing netlist
B点击read sdc file
C点击最上面的菜单第四个constraints,选择创建时钟（第一个）逐步设置
进入
D点击update timeing netlist
E用鼠标拉到最后点击write sdc file
再点击仿真上面的错误就没了