I'm having the same problem too
Here's the full compiler logs :
Project : Win32 Application
Compiler : Microsoft Visual C++ Toolkit 2003 (called directly)
Directory : C:\
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Switching to target: default
link.exe /nologo /subsystem:windows /LIBPATH:"C:\Program Files\Microsoft Visual C++ Toolkit 2003\lib" /LIBPATH:"C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Lib" /out:C:\Win32GUI.exe gdi32.lib user32.lib kernel32.lib .objs\main.obj
LINK : fatal error LNK1181: cannot open input file '.objs\main.obj'
Process terminated with status 1 (0 minutes, 0 seconds)
1 errors, 0 warnings
It seems as though the compiler isn't actually being called for some reason (and its path is correctly set up too).
Would like to know how to solve this.