LabWindows CVI 编译报错 error: Undefined sym?报错

之前是好的,突然就不行了,整了一晚上搞不定.

编译报错提示:   error: Undefined symbol '__imp__SetupDiGetClassDevsA@16 ' referenced in "d:\CVI\cvibuild.test\Debug\main.obj".  
SetupDiGetClassDevs是
WIndows API 函数 我已经包含头文件了  #include <SetupAPI.h>
这是怎么回事??

#include "stdio.h"
#include <windows.h>
#include <SetupAPI.h>
#include "initguid.h"
 
#pragma comment(lib, "SetupAPI.lib")
 
DEFINE_GUID(GUID_XHB1509A, 0x4dda4980, 0x9ed5, 0x4921, 0xbc, 0xf4, 0x29, 0xcb, 0xa3, 0xf0, 0x43, 0x6d);
 
int main()
{
    printf("\n");
    GetLastError();
    SetupDiGetClassDevs((LPGUID)&GUID_XHB1509A, NULL, NULL, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);  
}