error: no matching function for call to "Queue::Queue()" - c++

Question

So I am trying to call a function in my main.cpp file but I get "error: no matching function for call to 'Queue::Queue()."
Queue.h
#ifndef QUEUE_H
#define QUEUE_H
#include <iostream>
class Queue
{
public:
Queue(int);
~Queue();
//circular queue methods
void enqueue(std::string);
std::string dequeue(); //should send through network, call transmit msg
void printQueue();
bool queueIsFull(); //send when full
bool queueIsEmpty(); //send when empty
protected:
private:
int queueSize;
int queueHead;
int queueTail;
int queueCount;
std::string *arrayQueue;
};
#endif // QUEUE_H
Queue.cpp
#include "Queue.h"
#include <iostream>
#include <fstream>
#include <sstream>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
using namespace std;
Queue::Queue(int qs)
{
queueSize = qs;
arrayQueue = new string[queueSize];
queueHead = 0;
queueTail = 0;
}
Queue::~Queue()
{
delete[] arrayQueue;
}
void Queue::enqueue(string word)
{
for (int i=0;i<10;i++)
{
arrayQueue[i] = word;
}
}
void Queue::printQueue()
{
for(int j=0;j<10;j++)
{
cout<<arrayQueue[j]<<endl;
}
}
main.cpp
#include <iostream>
#include "Queue.h"
using namespace std;
int main()
{
int userChoice;
Queue q;
while(2==2)
{
cout<<"======Main Menu======"<<endl;
cout<<"1. Enqueue word"<<endl;
cout<<"2. Dequeue word"<<endl;
cout<<"3. Print queue"<<endl;
cout<<"4. Enqueue sentence"<<endl;
cout<<"5. Quit"<<endl;
cin>>userChoice;
if (userChoice == 1)
{
string enqueueWord;
cout<<"word: ";
cin>>enqueueWord;
enqueue(enqueueWord);
}
if (userChoice == 2)
{
}
if (userChoice == 3)
{
}
if (userChoice == 4)
{
}
if (userChoice == 5)
{
}
}
return 0;
}
So to call the function from the header file I did "Queue q;" at the beginning of the int main() and then when I needed to call the function I did "q.enqueue(enqueueWord)." I also tried just doing "Queue::enqueue(enqueueWord), but that also didn't work and I get a different error. I feel like this is an easy fix but I just can't figure it out. Thanks for the help and feel free to ask me to clarify anything.

Answer 1

Queue q;
attempts to call the default constructor Queue::Queue. However, this constructor has been removed automatically since you explicitly declare a constructor, namely Queue::Queue(int), on your own.
Pass an appropriate argument to q when initialized, like
Queue q1(42); // pre-C++11 syntax
Queue q{42}; // available since C++11
(Note: 42 is only an exemplary value here.)
You could also use default arguments to keep the definition as-is and initialize the object with a default value.
Notes:
Why while(2==2)? while (true) is the common way.