Link Error with own class

[dfstroppa]

Hi,

I defined my own class as follow, implemented all the methods, include the source in mmp file, but I still get these errors from the linker

Building resources from ..\data\tris_caption.rss
perl -S epocrc.pl -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC" -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP" -I "..\..\..\..\..\..\..\..\..\..\..\..\
..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\INC" -I- -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP" -I "..\..\..\..\..\..\..\..\..\..\..\..\..\Programmi\Symbian6.1\Series60\EPOC32\INCLUDE" -DLANG
UAGE_SC -u "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\..\DATA\TRIS_CAPTION.RSS" -o"\Programmi\Symbian6.1\Series60\EPOC32\RELEASE\WINS\UDEB\Z\SYSTEM\APPS\TRIS\TRIS_CAPTION.rSC" -h"..\..\..\..\..\..\..\..
\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\TRIS_CAPTION.rs~" -t"\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB"
1 file copiati.
echo this is a dummy output file > "\Programmi\Symbian6.1\Series60\EPOC32\RELEASE\WINS\UDEB\Z\SYSTEM\APPS\TRIS\TRIS_CAPTION.rSC.dummy"
call "MayRewriteHdr.bat"
del "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\TRIS_CAPTION.rs~"
Building resources from ..\data\tris.rss
perl -S epocrc.pl -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC" -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP" -I "..\..\..\..\..\..\..\..\..\..\..\..\
..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\INC" -I- -I "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP" -I "..\..\..\..\..\..\..\..\..\..\..\..\..\Programmi\Symbian6.1\Series60\EPOC32\INCLUDE" -DLANG
UAGE_SC -u "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\..\DATA\TRIS.RSS" -o"\Programmi\Symbian6.1\Series60\EPOC32\RELEASE\WINS\UDEB\Z\SYSTEM\APPS\TRIS\TRIS.rSC" -h"..\..\..\..\..\..\..\..\..\..\..\..\..\
PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\TRIS.rs~" -t"\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB"
1 file copiati.
echo this is a dummy output file > "\Programmi\Symbian6.1\Series60\EPOC32\RELEASE\WINS\UDEB\Z\SYSTEM\APPS\TRIS\TRIS.rSC.dummy"
call "MayRewriteHdr.bat"
del "..\..\..\..\..\..\..\..\..\..\..\..\..\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\SRC\TRIS.rs~"
Compiling...
Trisapp.cpp
Trisappui.cpp
Triscontainer.cpp
Trisdocument.cpp
Tris.uid.cpp
TrisGame.cpp
Generating Code...
Doing first-stage link by name
link.exe @C:\DOCUME~1\ADMINI~1\IMPOST~1\Temp\nma00436.
Creating library \Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB\TRIS.lib and object \Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TR
IS\WINS\UDEB\TRIS.exp
TRISCONTAINER.obj : error LNK2001: unresolved external symbol "public: __thiscall CTrisGame::CTrisGame(void)" (??0CTrisGame@@QAE@XZ)
TRISCONTAINER.obj : error LNK2001: unresolved external symbol "public: void __thiscall CTrisGame::switchPlayer(void)" (?switchPlayer@CTrisGame@@QAEXXZ)
TRISCONTAINER.obj : error LNK2001: unresolved external symbol "public: int __thiscall CTrisGame::getPlayer(void)const " (?getPlayer@CTrisGame@@QBEHXZ)
\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB\TRIS.APP : fatal error LNK1120: 3 unresolved externals
NMAKE : fatal error U1077: 'link.exe' : return code '0x460'
Stop.
if exist "\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB\TRIS.exp" del "\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB\T
RIS.exp"
Stopped the build by removing the export object,
if present, because the pre-link stage failed
Linking...
LINK : fatal error LNK1104: cannot open file "\Programmi\Symbian6.1\Series60\EPOC32\BUILD\PROGRAMMI\SYMBIAN6.1\SERIES60\SERIES60EX\TRIS\GROUP\TRIS\WINS\UDEB\TRIS.exp"
Error executing link.exe.

TRIS.APP - 6 error(s), 0 warning(s)

And here is the code i wrote

//
//header file
//

#ifndef TRISGAME_H
#define TRISGAME_H

// INCLUDES
#include <e32def.h>
#include <e32base.h>

// CONSTANTS
const TInt KSize = 3;
const TInt KPl1 = 1;
const TInt KPl2 = 2;

// CLASS DECLARATION

class CTrisGame : public CBase
{

public:
CTrisGame();
~CTrisGame();

TInt getPlayer() const;
void switchPlayer();

TInt getMovement(const TInt x, const TInt y) const;
void setMovement(const TInt x, const TInt y);

private:
TInt iPlayer; //Current Player
TInt iMovement[KSize][KSize]; //Current movemnt situation

};

#endif

//
//cpp source file
//

// INCLUDE FILES
#include "TrisGame.h"

CTrisGame::CTrisGame(){
for(TInt i = 0; i < 3; i++)
for(TInt j = 0; j < 3; j++)
iMovement[i][j] = 0;
iPlayer = KPl1;
}

CTrisGame::~CTrisGame(){
}

TInt CTrisGame::getPlayer() const{
return iPlayer;
}

void CTrisGame::switchPlayer(){
if(iPlayer == KPl1)
iPlayer = KPl2;
else
iPlayer = KPl1;
}

TInt CTrisGame::getMovement(const TInt x, const TInt y) const{
return iMovement[x][y];
}

void CTrisGame::setMovement(const TInt x, const TInt y){
iMovement[x][y] = iPlayer;
}

//
//Project file
//

TARGET Tris.app
TARGETTYPE app
UID 0x100039CE 0x08EDA0F7
TARGETPATH \system\apps\Tris

SOURCEPATH ..\src
SOURCE TrisApp.cpp
SOURCE TrisAppUi.cpp
SOURCE TrisDocument.cpp
SOURCE TrisContainer.cpp
SOURCE TrisGame.cpp

RESOURCE ..\data\Tris.rss
RESOURCE ..\data\Tris_caption.rss
LANG SC

USERINCLUDE . ..\inc

SYSTEMINCLUDE . \epoc32\include

LIBRARY euser.lib apparc.lib cone.lib eikcore.lib
LIBRARY eikcoctl.lib avkon.lib

START WINS
// ?wins_specific_information
END

START MARM
// ?marm_specific_information
END

// Other possible keywords:
/*
START BITMAP ?target
TARGETPATH ?emulated_path_on_target_machine
HEADER
SOURCEPATH ?source_path
SOURCE ?color_depth ?source_bitmap_list
END
*/
// DEFFILE ?filename

AIF Tris.aif ..\aif Trisaif.rss c8 context_pane_icon.bmp context_pane_icon_mask.bmp list_icon.bmp list_icon_mask.bmp



what is wrong???

thanks

[symbianyucca]

hi

basically "unresolved external symbol " means that the header file defining the class and it's functions was found, but the function implementation was not.

So check that you mmp file includes the cpp file that has the function implementations in it and then re-build your workspace, so the changes in mmp file will take effect. and try building again.

yucca

[dfstroppa]

Actually, I did what you said to me. The code posted before is the TrisGame.cpp file, already included in the mmp file. But it still doesn't work... :(

any other idea?

thanks

[eibenh]

Did you rebuild your makefile? I had a similar problem adding my own classes. Everything compiled alright, but I could not link (getting the same error message) the obj-files.

After rebuilding the makefiles using "abld makefile vc6" this solved my problem (compiling and running using VC++ 6.0).

BTW: there should be an addin for VC++ 6.0 to rebuild the makefiles and add custom classes. But for some reason this addin wont work on my system :( has anyone used this addin successful?