R5F100LEA使用IAR编译器,使用FDL库编译报错

IAR版本是 4.10.1 ,使用的库FDLT04_V105_R5F100xL_IAR120添加库文件之后编译报错误

Error[Li005]: no definition for "_PFDL_Close" [referenced from E:\BaiduSyncdisk\Project2\R5F100LEA\IAR\Debug\Obj\m_pfdl.o]
Error[Li005]: no definition for "_PFDL_Execute" [referenced from E:\BaiduSyncdisk\Project2\R5F100LEA\IAR\Debug\Obj\m_pfdl.o]
Error[Li005]: no definition for "_PFDL_Handler" [referenced from E:\BaiduSyncdisk\Project2\R5F100LEA\IAR\Debug\Obj\m_pfdl.o]
Error[Li005]: no definition for "_PFDL_Open" [referenced from E:\BaiduSyncdisk\Project2\R5F100LEA\IAR\Debug\Obj\m_pfdl.o]
Error while running Linker

有什么问题和解决办法吗?