Erreur "basic_string"

#include <iostream>
#include <ctime>
#include <cstdlib>
#include "fonction.h"


using namespace std;

int main()
{
    int taille=20;
    string tab[taille]={"un", "deux", "cinq", "rouge", "membre", "conseil", "donner", "reponse", "etat", "son", "armement", "peu", "apres", "vacances", "annonce", "mercredi", "evident", "regime", "affirmer", "arme"};
    string mot_cache=ChoisirMot(tab, taille);
    cout << mot_cache;
    return 0;
}

#include "fonction.h"
#include <ctime>
#include <cstdlib>


using namespace std;

char GetCaractere()
{
    char lettre;
    cout << "Proposez une lettre:";
    cin >> lettre;
    return lettre;
}
int GetNombreAlleatoire(int min=1, int max=20)
{
    srand(time(NULL));
    return rand()%max;
}
string ChoisirMot(string mots[], int taille)
{
    int pos=GetNombreAlleatoire(1, 20);
    return mots[pos];
}

#include <iostream>
#include <string>

#ifndef FONCTION_H_INCLUDED
#define FONCTION_H_INCLUDED

char GetCaractere();
int GetNombreAlleatoire(int min, int max);
std::string ChoisirMot(std::string mots[], int taille);
void IntEtoile(std::string& mot);
bool TestCaractere(char lettre, std::string& mot, std::string motCache);
bool TestGagne(std::string mot);

#endif // FONCTION_H_INCLUDED