编译器提示“ error: ld returned 1 exit status”在怎么解决呢？？

#include <iostream>
using namespace std;

void n_chars(char, int);

int main()
{
    int times;
    char ch;
   
    cout << "Enter a character: ";
    cin >> ch;
    while (ch != 'q')
    {
        cout << "Enter an integer: ";
        cin >> times;
        n_chars(ch, times);
        cout << "\nEnter another character or press the"
                " q-key to quit: ";
            cin >> ch;
    }
    cout << "The value of times is " << times << ".\n";
    cout << "Bye.\n";
    return 0;
}

void n_chars(char c, char n)
{
    while (n-- > 0)
        cout << c;
}

然后编译的时候就提示“error: ld returned 1 exit status”
怎么解决呢？谢谢大家！

[此贴子已经被作者于2018-7-27 10:44编辑过]