mwldsym2.exe: Undefined symbol: 'int E32Main(void)

[tulimiero]

Hi, i'm on an application, that work fine on s60 3rd ed.
Now i would like compile it with 2nd ed.
I created a new project in carbide, based on 2nd ed, copyng all files i need, change .mmp file, but i don't understand why i have this error :

"\Symbian\8.1a\S60_2nd_FP3\EPOC32\BUILD\WORKSPACE\DIRECTORYMONITORING\GROUP\DIRECTORYMONITORING\WINSCW\DIRECTORYMONITORING.WINSCW" UDEB
mwldsym2.exe: Undefined symbol: 'int E32Main(void) (?E32Main@@YAHXZ)'
mwldsym2.exe: referenced from 'int startupThread(void) (?startupThread@@YAHXZ)' in up_exe.cpp:211 (EEXE.LIB)

[wizard_hu_]

If you check the error message, it says E32Main is missing from your code. This is the word-for-word interpretation.
However if your code is a GUI application, you should specify DirectoryMonitoring.app as TARGET and app as TARGETTYPE in the .mmp file. In this case you will need E32Dll method.
In case of mixed 2nd-3rd source code of a GUI application, DirectoryMonitoring.cpp (probably) could be something like this:

#ifdef EKA2
#include <eikstart.h>
#endif
#include "DirectoryMonitoringApp.h"

EXPORT_C CApaApplication* NewApplication()
{
    return new CDirectoryMonitoringApplication;
}

#ifndef EKA2

GLDEF_C TInt E32Dll(TDllReason /*aReason*/)
{
	return KErrNone;
}

#else

GLDEF_C TInt E32Main()
{
    return EikStart::RunApplication( NewApplication );
}

#endif

[tulimiero]

Thanks for your reply. I followed your advices, an now application compiles, it work on my n70, but not on emulator. I think is an error that occurs after emulator sturtup but before application statup.
Have you got any idea?