我刚开始接触arm，用PB5.0编译mini2440带的例程时出错，具体为：
BUILD: [01:0000000614:ERRORE] SC2440_SDHCBase.lib(sdhcmain.obj) : error LNK2019: unresolved external symbol "class CSDIOControllerBase * __cdecl CreateSDIOController(struct SDCARD_HC_CONTEXT *)" (?CreateSDIOController@@YAPAVCSDIOControllerBase@@PAUS
DCARD_HC_CONTEXT@@@Z) referenced in function SDH_Init
BUILD: [01:0000000615:ERRORE] SC2440_SDHCBase.lib(sdhcmain.obj) : error LNK2019: unresolved external symbol "public: struct SDCARD_HC_CONTEXT * __cdecl CSDIOControllerBase::GetHostContext(void)const " (?GetHostContext@CSDIOControllerBase@@QBAPAUSDCA
RD_HC_CONTEXT@@XZ) referenced in function SDH_PreDeinit
BUILD: [01:0000000616:ERRORE] E:\WINCE500\platform\mini2440\target\ARMV4I\retail\SDHC_SC2440.dll : fatal error LNK1120: 2 unresolved externals
请问要如何解决？另外，PB5.0已经打了2008年的全年补丁。
