IAR编译出现undefined external XxX referred in xXx

求助，RFID实验
IAR编译出现，undefined external 'SPIOneByte' referred in FM1702SL

[IAR] 编译报错:Variable expansion failed for Pre-Build command line_jianqiang.xue的博客-CSDN博客 导入工程，编译报错。IAR配置丢失（编译APP时报错，提示：Variable expansion failed for Pre-Build command line.） https://blog.csdn.net/qq_29246181/article/details/126582957