【解决问题】Error (171016): Can't place node "" -- illegal location assignment_error (171016): can't place node "out[2]" -- illeg-优快云博客

在使用Quartus进行电路设计时遇到编译错误，错误信息指出无法放置指定节点到非法位置。通过检查并确认器件设置、重置芯片引脚后，问题得以解决。

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在quartus分配引脚以后编译出现如下问题：

Error (171016): Can't place node "" -- illegal location assignment

查找到quartus有如下解释：

CAUSE:

The Fitter could not place the specified node due to the specified illegal location assignment. This error can occur when you edit Quartus II Settings File (.qsf) manually, or when you make a location assignment, select a different target device for the current design, and select No when you asked if you want to remove the location assignments. The location assignment is not supported for the new device.

ACTION:

To avoid receiving this message in the future, remove the location assignment from the specified node, or click Yes when you are asked if you want to remove location assignments when selecting a different device.

于是我采取如下措施：

查找器件是否设置正确，还是不行，重置一下芯片引脚【在device中先随机选一个再选回来，中间问是不是重新分配引脚，选择是】

问题得到解决！