C++ 链接：致命错误 LNK1561：必须在 VC++ 中定义入口点错误
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/17070367/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
LINK : fatal error LNK1561: entry point must be defined ERROR IN VC++
提问by SortOf
I installed MS VS VC++ for the first time in order to start programming OpenGL with GLFW library. I follower instructions on how to install it over at http://shawndeprey.blogspot.com/2012/02/setting-up-glfw-in-visual-studio-2010.htmlThen I wrote this simple program, just to test it, which did work on Eclipse:
我第一次安装了 MS VS VC++，以便开始使用 GLFW 库对 OpenGL 进行编程。我在http://shawndeprey.blogspot.com/2012/02/setting-up-glfw-in-visual-studio-2010.html上遵循有关如何安装它的说明 然后我编写了这个简单的程序，只是为了测试它，它确实在 Eclipse 上工作：
#include <stdlib.h>
#include <GL/glfw.h>
using namespace std;
int main()
{
int running = GL_TRUE;
if (!glfwInit()) {
exit(EXIT_FAILURE);
}
if (!glfwOpenWindow(300, 300, 0, 0, 0, 0, 0, 0, GLFW_WINDOW)) {
glfwTerminate();
exit(EXIT_FAILURE);
}
while (running) {
// glClear( GL_COLOR_BUFFER_BIT );
glfwSwapBuffers();
running = !glfwGetKey(GLFW_KEY_ESC) && glfwGetWindowParam(GLFW_OPENED);
}
glfwTerminate();
exit(EXIT_SUCCESS);
return 0;
}
But then I got this awful error:
但后来我得到了这个可怕的错误：
------ Build started: Project: first1, Configuration: Debug Win32 ------
LINK : fatal error LNK1561: entry point must be defined
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I know, I've looked around on the internet and the only solution I found was "It requires main()function in order to work". I obviously have it, right there, but it still throws me the same fatal error :(
我知道，我在互联网上环顾四周，我发现的唯一解决方案是“它需要main()功能才能工作”。我显然有它，就在那里，但它仍然给我抛出同样的致命错误:(
Would be great to get response on how to fix it. There might me a flaw in the installation process or something.
能得到关于如何修复它的回应会很棒。安装过程中可能存在缺陷或其他什么。
回答by collaborator
Is this a console program project or a Windows project? I'm asking because for a Win32 and similar project, the entry point is WinMain().
这是控制台程序项目还是 Windows 项目？我问是因为对于 Win32 和类似项目，入口点是WinMain().
- Right-click the Project (not the Solution) on the left side.
- Then click Properties -> Configuration Properties -> Linker -> System
- 右键单击左侧的项目（不是解决方案）。
- 然后点击属性 -> 配置属性 -> 链接器 -> 系统
If it says Subsystem Windowsyour entry point should be WinMain(), i.e.
如果它说Subsystem Windows你的入口点应该是 WinMain()，即
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nShowCmd)
{
your code here ...
}
Besides, speaking of the comments. This is a compile (or more precisely a Link) error, not a run-time error. When you start to debug, the compiler needs to make a complete program (not just to compile your module) and that is when the error occurs.
此外，说到评论。这是编译（或更准确地说是链接）错误，而不是运行时错误。当你开始调试时，编译器需要制作一个完整的程序（不仅仅是编译你的模块），这就是错误发生的时候。
It does not even get to the point being loaded and run.
它甚至没有达到被加载和运行的地步。
回答by ash
It cant find the entry point for your program, in this case main(). Your linker settings are likely incorrect.
在这种情况下，它无法找到您的程序的入口点main()。您的链接器设置可能不正确。
See this post here
回答by Michelangelo Machado
In my case, the program was running fine, but after one day, I just ran into this problem without doing anything...
在我的情况下，程序运行良好，但一天后，我遇到了这个问题而没有做任何事情......
The solution was to manually add 'Main' as the Entry Point (before editing, the area was empty):
解决方案是手动添加“Main”作为入口点（编辑前，该区域为空）：
回答by Matas Lesinskas
change it to Console (/SUBSYSTEM:CONSOLE) it will work
将其更改为 Console (/SUBSYSTEM:CONSOLE) 它将起作用
回答by Michael Haephrati
You can get this error if you define a project as an .exe but intent to create a .lib or a .dll
如果您将项目定义为 .exe 但打算创建 .lib 或 .dll，则可能会出现此错误
回答by sdff
I've had this happen on VS after I changed the file's line endings. Changing them back to Windows CR LF fixed the issue.
在更改文件的行尾后，我在 VS 上发生了这种情况。将它们改回 Windows CR LF 解决了该问题。
回答by Brackets
In Visual Studio:
Properties ->Advanced ->Entry Point ->write just the name of the function you want the program to begin running from, case sensitive, without any brackets and command line arguments.
在 Visual Studio 中：属性->高级->入口点->只写你希望程序开始运行的函数的名称，区分大小写，没有任何括号和命令行参数。
回答by lizard
Mainwas missing in the entry point configuration.
Main在入口点配置中丢失。
