Call library function node - function not found

Question

When creating a DLL I get a the Labview error "Call Library Function Node "LabviewReceiverDLL.dll:readDataJ1939Data' Function not found. Everything looks correct to me and this used to work, though I've changed computers since then.
This is the beginning of my C++ code just to show my function name. I've also attached the Call Library Function Window to show my setup.
Thank you in advance for your help.
#include"StdAfx.h"
#include<iostream>
/* Call Library source file */
extern"C"__declspec(dllexport)unsignedint readDataJ1939Data(unsignedint, unsignedint, unsignedchar, unsignedchar* canData, unsignedchar* path);
unsigned int readDataJ1939Data(unsignedint ulTimeStamp, unsignedint ulIdentifier, unsignedchar uiDataCount, unsigned char* canData, constchar* path)
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Attachments:
Call Library Function.png ‏192 KB

Answer 1

You mention that you have changed computers and that it used to work before.
Could it be that there is another (older) copy of the DLL on this computer, and LabVIEW is loading the wrong one?
The simplest way to check is to close your VI and delete the one you are expecting it to use.  Then open the VI again; if LabVIEW doesn't ask you where the DLL is, it is loading it from somewhere else.
Batya