I am having trouble compiling my code for HashTables

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[rare lodge]

These are the errors im getting after i create my hashtable object in main.cpp i've been stuck on it for a while now. Does anyon2 know how to fix it? Here is my code: hashtable.h ```
#ifndef HASHTABLE_H
#define HASHTABLE_H

#include <string>
#include <iostream>

using std::cout;
using std::endl;
using std::string;

#define HASHTABLESIZE 15

#include "linkedlist.h"
#include "data.h"

class Hashtable{

private: 
int hash(int); // hash function, returns index of array to add value to
int count;

public:

Hashtable();
~Hashtable();

bool insertEntry(int, string*);
string getData(int, string&);
bool removeEntry(int);
int getCount();
void printTable();

};

#endif

hashtable.cpp

/*

• This is a simple Hash Table using separate chaining
  */

#include "hashtable.h"

// declare hash varaible

LinkedList hashTable[HASHTABLESIZE];

Hashtable::Hashtable(){
count = 0;
}

Hashtable::~Hashtable() {
// nothing to do here
}

//hash private function

int Hashtable::hash(int id){
return id % HASHTABLESIZE;
}

//public functions

bool Hashtable::insertEntry(int id, string* data){
bool success = false;
if (id > 0) {
success = hashTable[hash(id)].addNode(id, data);
if (success) {
count++;
}
}
return success;
}

string Hashtable::getData(int id, string& data){
bool success = false;
if (id > 0) {
Data* collectData = new Data;
success = hashTable[hash(id)].getNode(id, collectData);
data = collectData->data;
}
return data;

}

bool Hashtable::removeEntry(int id){
bool success = false;
if (id > 0) {
success = hashTable[hash(id)].deleteNode(id);
if (success) {
count--;
}
}
return success;
}

int Hashtable::getCount(){
return count;
}

void Hashtable::printTable(){
for (int i = 0; i < HASHTABLESIZE; i++) {
cout << "Index " << i << ": ";
hashTable[i].printList();
}
}

main.cpp object

Hashtable* ht = new Hashtable();

!solved