LIBCD.lib(crt0.obj) : error LNK2019: unresolved external symbol _main

[Bruce Schechter]

I am quite experienced with vs.net 2003 and c# but fairly new to c++. I
have a test app in c++ that I need to compile for a c#/c++ interop
evaluation I'm doing.



But first, I simply need to compile some straightforward, non-managed,
console based c++ code. I created a win32 console c++ project. Then I
added several "existing" c++ .cpp and .h files. When I try to compile, I
get this error...



LIBCD.lib(crt0.obj) : error LNK2019: unresolved external symbol _main
referenced in function _mainCRTStartup

Debug/player-cpp-only.exe : fatal error LNK1120: 1 unresolved externals



My player-cpp-only.cpp file contains "main()". The error above leads me to
believe something is going wrong in or near the file containing main(), so I
have included the contents of that file below.



Recommendations for debugging will be greatly appreciated.



Thanks, Bruce



// player-cpp-only.cpp

#include "player.h"



namespace nsPlayer

{

int main()

{

Player player( "Test Player", false );

DiskCollection disks( "disks.dat", "Bruce's Disk Collection" );

player.attachAC(true);



return 0;

}



}

 

[Jeff Partch [MVP]]

I suspect your namespace makes your main COMDAT something like...

?main@nsPlayer@@YAHXZ

....whereas _mainCRTStartup is looking for...

_main

....I bet if you take it out of the namespace it'll work, but if you still
have problems, you probably need to redeclare it as...

extern "C" int main()

 

[Gary Chang]

Hi Bruce,

Do you have tried Jeff's suggestion?


Keep the information coming!

Best regards,

Gary Chang
Microsoft Online Partner Support

Get Secure! - www.microsoft.com/security
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------

 

[Bruce Schechter]

Gary and Jeff,
I found a problem in my config of vs.net and things are up and running
again.
Thanks!
- Bruce

 

[Wyatt Lindsey]

Gary and Jeff,
I found a problem in my config of vs.net and things are up an
running
again.
Thanks!
- Bruce



Hi Bruce,

I'm having similar trouble in vs.net. Do you remember what you di
to fix the problem with the coniguration? I'd appreciate any help.

- Wyat

-
Wyatt Lindse

 

[stiiv86]

hi,
im having the same problem
when i try to compile my code it will give me error
my code is:

int main()
{
int i;
i=6;
return(0);
}

and error:

--------------------Configuration: kolmas - Win3
Debug--------------------
Compiling...
kolmas.cpp
Linking...
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbo
_WinMain@16
Debug/kolmas.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

kolmas.exe - 2 error(s), 0 warning(s)

can you please help me
i cant compile my code, i have this error since i installed allegr
librar


-
stiiv8

 

[William DePalo [MVP VC++]]

--------------------Configuration: kolmas - Win32
Debug--------------------
Compiling...
kolmas.cpp
Linking...
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol
_WinMain@16
Debug/kolmas.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

kolmas.exe - 2 error(s), 0 warning(s)

can you please help me
i cant compile my code, i have this error since i installed allegro
library

Windowed applications on Win32 begin at WinMain() while character mode
applications begin at main(). Apparently you have mistakenly created a
Windowed project with console application code.

Regards,
Will

 

[stiiv86]

thank you for your help,
i'm quite new to C++
now it works :


-
stiiv8

 

[RFickling]

Hi,

I am getting the same error, but with an ATL-based COM project. As fa
as I know it doesn't have a main(). So what is going on? Any help woul
be appreciated.

Royc


-
RFicklin