I installed Qt through aqt (in my country you can’t set Qt). When I run this code i get an error:

#include <QCoreApplication>
#include <iostream>
#include <string>

void do_cpp() {
    std::string name;
    std::cout << "Please enter your name: ";
    std::getline(std::cin, name);
    std::cout << "Hello " << name << 'n';
}

int main(int argc, char *argv[]) {
    do_cpp();
    QCoreApplication a(argc, argv);
    return a.exec();
}

`
an error appears on the line with first cout.
error: signal: SIGSEGV appointment: Segmentation fault

how to fix the error? The problem is most likely in the Qt itself. but I have no idea what to do.