fatal error: 'wchar.h' file not found #include_next . error with visual studio code

I keep getting errors in VSC on programs which work in my IDE Clion. I now tried building a simple program and it still causes errors. Using Mac.

error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/wchar.h:119:15: fatal error: 

  'wchar.h' file not found
 #include_next <wchar.h>

 1 error generated.
 The terminal process terminated with exit code: 1

code hello.cpp

#include <iostream>

using namespace std;
int main()
{
    cout << "Please enter your name: ";
string name;
    cin >> name;
    cout << "Hello, "<< name;
    cout << "\n";
return 0;
}

This doesn't build. but the executable file hello works as intended. when I try to build with clang it throws this error. when I try to use the command g++ hello.cpp in terminal, it gives this error:

ld: can't write output file: a.out for architecture x86_64

clang:

error: linker command failed with exit code 1 (use -v to see invocation)