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DLP®︎ Discovery™︎ 4100的FPGA开发问题

购买了一个DLP® Discovery™ 4100开发套件,想要研究他的FPGA程序部分,下载其官方代码后添加完引脚文件merge.ucf后出现了很多引脚未找到的错误,这是什么原因?有人可以解答一下吗