Visual Studio 找不到我的 C++ hello world 文件

Question

#include <iostream>

int main()
{
    std::cout << "Hello World" << endl;
    return 0;
}

When I try to run this code, this message keeps popping up even though I copied and pasted straight from online. There are no build errors either. Here's the error message

Answer 1

Nothing wrong with your code. Could be your antivirus deleting the exe before visual studio can start it. Try disabling your antivirus and run from VS again.

If not antivirus, then something else is deleting it.

Check if the exe shown in the path in your image is really there or not.

Answer 2

If you click Build -> Build Solution, you will get an error:

error C2065: 'endl': undeclared identifier.

I suggest you should try to use std::endl

Here is the code:

#include <iostream>

int main()
{
    std::cout << "Hello World" << std::endl;
    return 0;
}

And then you could try to run this code:

Answer 3

I added the file from the new file option not directly from the source file once I created the c++ project.

Answer 4

that error means that the.exe file is most likely still running. it may be that you closed it trough the "X" button, but the VS debugger is still running, so try clicking on the red square to stop it or go in your task manager and manually kill the process.

it may also be that the exe is opened by another process such as a hex editor which is denying further execution access to the file, but i have had this issue personally before and the fix above worked.