Ошибка vector does not name a type

I’m having lots of errors in my final project (a poker and black jack sim). I’m using a vector to implement the «hands» in the blackJack class, and I’m using a structured data type declared in another class, which is publicly inherited. The error I’m worried about is the compiler I’m using telling me that I’m not declaring a type in the vector.

blackJack header file:

 #ifndef BLACKJACK_H
 #define BLACKJACK_H
 #include <vector>
 #include "card.h"

 class blackJack: public cards
 {
 private:
    vector <Acard> playerHand;
    vector <Acard> dealerHand;

 public:
    blackJack();
    void dealHands();
    void hitOrStay();
    void dealerHit();
    int handleReward(int);
    void printHands();
 };
 #endif 

card header file (this is the class black jack inherits from):

 #ifndef CARD_H
 #define CARD_H

 const char club[] = "xe2x99xa3";
 const char heart[] = "xe2x99xa5";
 const char spade[] = "xe2x99xa0";
 const char diamond[] = "xe2x99xa6";
 //structured data to hold card information
 //including:
 // a number, representing Ace-King (aces low)
 //a character, representing the card's suit
 struct Acard
 {
   int number;
   char pic[4];
 };



 // a class to hold information regarding a deck of cards
 //including:
 //An array of 52 Acard datatypes, representing our Deck
 //an index to the next card in the array
 //a constructor initializing the array indices to Ace-king in each suit
 //a function using random numbers to shuffle our deck of cards
 //13 void functions to print each card
 class cards
 {
  private:
    Acard Deck[52];
    int NextCard;
  public:
    cards();
    Acard getCard();
    void shuffleDeck();
    void cardAce(char[]);
    void cardTwo(char[]);
    void cardThree(char[]);
    void cardFour(char[]);
    void cardFive(char[]);
    void cardSix(char[]);
    void cardSeven(char[]);
    void cardEight(char[]);
    void cardNine(char[]);
    void cardTen(char[]);
    void cardJack(char[]);
    void cardQueen(char[]);
    void cardKing(char[]);

 };

 #endif

I’m having lots of errors in my final project (a poker and black jack sim). I’m using a vector to implement the «hands» in the blackJack class, and I’m using a structured data type declared in another class, which is publicly inherited. The error I’m worried about is the compiler I’m using telling me that I’m not declaring a type in the vector.

blackJack header file:

 #ifndef BLACKJACK_H
 #define BLACKJACK_H
 #include <vector>
 #include "card.h"

 class blackJack: public cards
 {
 private:
    vector <Acard> playerHand;
    vector <Acard> dealerHand;

 public:
    blackJack();
    void dealHands();
    void hitOrStay();
    void dealerHit();
    int handleReward(int);
    void printHands();
 };
 #endif 

card header file (this is the class black jack inherits from):

 #ifndef CARD_H
 #define CARD_H

 const char club[] = "xe2x99xa3";
 const char heart[] = "xe2x99xa5";
 const char spade[] = "xe2x99xa0";
 const char diamond[] = "xe2x99xa6";
 //structured data to hold card information
 //including:
 // a number, representing Ace-King (aces low)
 //a character, representing the card's suit
 struct Acard
 {
   int number;
   char pic[4];
 };



 // a class to hold information regarding a deck of cards
 //including:
 //An array of 52 Acard datatypes, representing our Deck
 //an index to the next card in the array
 //a constructor initializing the array indices to Ace-king in each suit
 //a function using random numbers to shuffle our deck of cards
 //13 void functions to print each card
 class cards
 {
  private:
    Acard Deck[52];
    int NextCard;
  public:
    cards();
    Acard getCard();
    void shuffleDeck();
    void cardAce(char[]);
    void cardTwo(char[]);
    void cardThree(char[]);
    void cardFour(char[]);
    void cardFive(char[]);
    void cardSix(char[]);
    void cardSeven(char[]);
    void cardEight(char[]);
    void cardNine(char[]);
    void cardTen(char[]);
    void cardJack(char[]);
    void cardQueen(char[]);
    void cardKing(char[]);

 };

 #endif

I have a mysterious problem. I keep getting a ‘vector’ does not name a type error when trying to define a variable in the tour class. The library seems installed correctly, since I can define vectors in main. According to many posts here I have checked for the right vector includes and std namespace. Still I get the error.

main.cpp

#include <vector>
#include <iostream>
#include <cstring>
#include <stdio.h>
#include <time.h>
#include <math.h>
#include <cmath>
#include <cstdlib>
#include "tour.h"
using namespace std;

int main () {

        //vector declaration works here
return 0;
}

tour.h

#ifndef TOUR_H_
#define TOUR_H_

#include<vector>
using namespace std;

class tour
{
    public:
      //variables
      int teamID;
      vector<int> tourseq; //this is where the error occurs

      //functions
      tour(int);

};

#endif /* TOUR_H_ */

tour.cpp

#include<vector>
#include "tour.h"
using namespace std;

tour::tour(int id){
teamID = id;
}

What could be wrong here?