Thread: biggest noob question

the F5 button i believe.

if not:

F9
Ctrl + F5
Ctrl + F9

One of those always works...

didnt work, whenever i press ctrl-f5 it says it cant start because the file does not exist

edit:renaming didnt work
edit2: bah i can compile c# files but not c++ and i wanted to try making some c++ files before i went to c#

If you have an existing project from VC6, open it in VC7. Click yes when you are asked to convert. If you want to build a new project, Select new project from the File menu. Make sure you select the right project, C++ if you want C++, C# if you need C#. Select "Build Solution" or "Build" from the menu. Check for any compiler errors. If there are no errors there should be an informational line line "1 Project build, 0 failed, 0 skipped".
Your executable is now located in the appropriate folder, either bin/Debug or bin/Release. If it was Debug, you can start debugging by pressing the "Play" button in VC7.

If there are any error-messages in this process, please post them.

------ Build started: Project: starship, Configuration: Debug Win32 ------

Compiling...
ship.cpp
Linking...
LINK : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/INCREMENTAL:NO' specification
LIBCD.lib(crt0.obj) : error LNK2019: unresolved external symbol _main referenced in function _mainCRTStartup
.\Debug/starship.exe : fatal error LNK1120: 1 unresolved externals

Build log was saved at "file://c:\Program Files\Microsoft Visual Studio\MyProjects\starship\Debug\BuildLog.htm"
starship - 2 error(s), 1 warning(s)


---------------------- Done ----------------------

Build: 0 succeeded, 1 failed, 0 skipped


i dunno if this has anything to do with it but i am using allegro.h and alleg.lib in the project

------ Build started: Project: starship, Configuration: Debug Win32 ------

Compiling...
ship.cpp
Linking...
LINK : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/INCREMENTAL:NO' specification
LIBCD.lib(crt0.obj) : error LNK2019: unresolved external symbol _main referenced in function _mainCRTStartup
.\Debug/starship.exe : fatal error LNK1120: 1 unresolved externals

Build log was saved at "file://c:\Program Files\Microsoft Visual Studio\MyProjects\starship\Debug\BuildLog.htm"
starship - 2 error(s), 1 warning(s)


---------------------- Done ----------------------

Build: 0 succeeded, 1 failed, 0 skipped




This is called a compiler error

You don't have a main function in your program. Maybe you have a windows application but created your new project as console application ?

void main()
{

}


whats wrong with that?

Besides the fact that main should return an int, anything else can result in undefined behaviour, I see nothing wrong with it.

Change it to return int and make sure this file is in the project.

Yes, make sure your project is build for SUBSYSTEM:WINDOWS. Browse through your project or solutions properties, it has to be in there somewhere ( don't have a compiler on this pc ).

Its in project properties (right click on your project in the solution window and select properties) /Linker/System. You need to change the SubSystem field to either "Console(/SUBSYSTEM:CONSOLE)" or "Windows(/SUBSYSTEM:WINDOWS)" depending on what you are trying to compile.

Its console if you have:

Code:

int main()
{
}

and windows if you have:

Code:

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
}