搭建完Keil工程后进行编译后发生如下的错误

状况：搭建完Keil工程后进行编译后发生如下的错误：compiling STM32f4xx_fmc.c.......CodeFileBspstm32f4xx_fmc.c(144): error:  #20: identifier "FMC_Bank1" is undefined      FMC_Bank1->BTCR[FMC_Bank] = 0x000030DB;    ...