请问c2039错误一般在什么情况下发生？

[JohnLayer]

我在编译时发现了以下错误
error C2039: 'Import3dmax3DS' : is not a member of 'C3dWorld'
..\gl\gl.h(3846) : see declaration of 'C3dWorld'
我定义了‘Import3dmax3DS’
请问下一般在什么情况下发生C2039错误？

[xing_xing_xing]

没有Import3dmax3DS成员变量
class C3dWorld
{
void Import3dmax3DS(){};
};

[JohnLayer]

头文件里这样声明的
class AFX_EXT_CLASS C3dWorld : public CObject
{
DECLARE_DYNAMIC(C3dWorld);
......
C3dObject* Import3dmax3DS(LPCSTR lpszFileName, BOOL bAddToList=TRUE);
......
}
定义
C3dObject* C3dWorld::Import3dmax3DS(LPCSTR lpszFileName, BOOL bAddToList)
{
......
}

调用时出错行
C3dObject* pObject = m_pWorld->Import3dmax3DS(szPath, FALSE);

[JohnLayer]

由于程序比较大
在Rebuild All以后
已经没有这个错误了

[taianmonkey]

Compiler Error C2039'identifier1' : is not a member of 'identifier2'

The code incorrectly uses a nonmember of a structure or union. For example:

// C2039.cpp
struct S
{
int mem0;
} *pS;
int main()
{
pS->mem1 = 0; // C2039, mem1 is not a member
pS->mem0 = 0; // OK
}