Msvcrtd.lib（exe_main.obj）：错误LNK2019：函数中引用的未解析的外部符号_main“int __cdecl invoke_main（void）" [英] Msvcrtd.lib(exe_main.obj) : error LNK2019: unresolved external symbol _main referenced in function "int __cdecl invoke_main(void)"

问题描述

我有一个主程序开头：

I've got a main program starting with:

int main(int argc, char**argv)
{
.....
}

编译成功，但是当我构建它时，我得到的消息如下。这意味着我的主程序是exe_main（）对象引用的未解析符号。我很困惑。

It is compiled successfully, but when I built it, I got message as below. It means that my main program is an unresolved symbol to be referenced by exe_main() object. I got confused.

1>------ Rebuild All started: Project: dsim, Configuration: Debug Win32 ------
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.CppBuild.targets(368,5): warning MSB8004: Output Directory does not end with a trailing slash.  This build instance will add the slash as it is required to allow proper evaluation of the Output Directory.
1>  dsim.cpp
1>MSVCRTD.lib(exe_main.obj) : error LNK2019: unresolved external symbol _main referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ)
1>.\Debug\dsim.exe : fatal error LNK1120: 1 unresolved externals

我尝试过：



我用

What I have tried:

I googled it by "

LNK2019

来搜索它，但所有情况都与我的不同。

" but all cases are different from mine.

推荐答案

可能有很多原因可能隐藏在项目设置中的某个地方。但找到错误的设置是一项任务，只能由你完成。



最简单的解决方案是创建一个新项目，选择合适的应用程序类型（我想它是一个非Unicode控制台应用程序）并使用创建的文件模板，其中包含主函数。然后将现有代码复制并粘贴到创建的文件中，并根据需要添加其他现有的源文件和头文件。

There may be many reasons probably buried somewhere in your project settings. But finding the wrong setting is a task that can be only done by you.

The simplest solution would be creating a new project choosing the appropriate application type (I guess it is a non Unicode console application) and using the created file templates which contain a main function. Then copy and paste the existing code into the created files and add other existing source and header files as necessary.

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