VSCode 无法编译 "1.1 Hello World.cpp"这样的文件，请问该怎么解决？

// 3.2 hello world.cpp

#include<iostream>

using namespace std;

int main()
{
    cout << "Hello World!" << endl;

    return 0;
}

以上代码在VSCode环境下无法编译，
报错如下：

g++: error: 1.1: No such file or directory
g++: error: Hello: No such file or directory
g++: error: World.cpp: No such file or directory
g++: error: Hello: No such file or directory
g++: error: World: No such file or directory
g++: fatal error: no input files

请问该如何解决？

配置没有配置对
https://blog.csdn.net/fb_help/article/details/79249297
https://blog.csdn.net/bat67/article/details/76095813