vscode tasks.json to Build & debug C++ programs using mingw64 g++

tasks.json

{
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++.exe build active file",
            "command": "C:\\msys64\\mingw64\\bin\\g++.exe",
            "args": [
                "-static-libstdc++",
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}\\${fileBasenameNoExtension}.exe"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ],
    "version": "2.0.0"
}

This is a standard task which gets generated the first time we try to debug a C++ program in vscode as we follow its instructions on setting up C++.

They key missing argument here is -static-libstdc++
I was getting error in debug console window of vscode terminal During startup program exited with code 0xc0000139. to the standard program that was mentioned in the official vscode instructions.

#include <iostream>
#include <vector>
#include <string>

using namespace std;

int main()
{
    vector<string> msg {"Hello", "C++", "World", "from", "VS Code", "and the C++ extension!"};

    for (const string& word : msg)
    {
        cout << word << " ";
    }
    cout << endl;
}

I tried to build the program from terminal using the command g++ hello-world.cpp -o hello.exe which it did successfully.

Then I commented out the vector declaration and program built and I was able to debug. This was a good hint and on further searching I found out that I was missing the libstdc++-6.dll or had two copies of it. This was the case for the terminal in which vscode was executing my program.

Googling the exact fix led me to libstdc++-6.dll