It's no any response after starting debugging - c++

Question

According to the instruction: https://code.visualstudio.com/docs/cpp/config-mingw, .vscode files are set. Then, I add the MinGW64 path to the system path. But, when I start debugging, VS Code hangs and no finish, I also scan the Console by the steps: Help->Toggle Developer Tools, and the Console displays the following error, and I don't know how to solve.
enter image description here
The followings are my source code and both JSON files:
// source code file
#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;
}
// launch.json
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "g++.exe build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": true,
"MIMode": "gdb",
"miDebuggerPath": "C:\\Program Files (x86)\\mingw-w64\\i686-7.2.0-win32-sjlj-rt_v5-rev1\\mingw32\\bin\\gdb.exe",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
],
"preLaunchTask": "g++.exe build active file"
}
]
}
// tasks.json
{
"version": "2.0.0",
"tasks": [
{
"type": "shell",
"label": "g++.exe build active file",
"command": "C:\\Program Files (x86)\\mingw-w64\\i686-7.2.0-win32-sjlj-rt_v5-rev1\\mingw32\\bin\\g++.exe",
"args": [
"-g",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "C:\\Program Files (x86)\\mingw-w64\\i686-7.2.0-win32-sjlj-rt_v5-rev1\\mingw32\\bin"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}