ISE 错误

2020-02-27 21:10发布

ERROR:PhysDesignRules:368 - The signal <ila0_trig1<9>> is incomplete. The signal
   is not driven by any source pin in the design.
ERROR:PhysDesignRules:10 - The network <ila0_trig1<9>> is completely unrouted.
大量出现上述错误,请教下是什么原因呢?
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