compling error

[new_bee]

Hi guys!

I am working on a small project which contains three files
1. MainTest.cpp
2. CashRegister.h
3. CashRegister.cpp

I have done everything that suppose to be done but still I am getting an error and can not execute the program.... can anyone points out what is wrong with my program?

Here is the code

// MainTest.cpp

#include <iomanip>
	using std::setw;
	using std::left;
#include <iostream>
	using std::cout;
	using std::endl;
	using std::ios;
#include "CashRegister.h"

const char ERROR[] = "Error! Registration failed."; 

int main()
{
	CashRegister cash("Register.txt", 5);

	cout << "This test should give five error messages below!" << endl;
	cout << "------------------------------------------------" << endl;

	if (!cash.registerItem( 3,"Tvål Sun", 18.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Äppelmos Bob", 14.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Coca Cola 2 lit.",  12.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Kroppkakor 4 st.", 18.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Mjölk mellan 1 lit", 6.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 2,"Skottkärran Emil",  389.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 2,"Räfsan Gunda", 110.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Socker bit ½ kg", 14.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 3,"Tandkräm Linnéa",  9.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 3,"Deodorant Axe", 37.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 4,"Aftonbladet", 8.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 4,"Mitt livs korsord",  39.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Svenssons äppelpaj", 30.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 4,"Skraplott Lyckans Ost", 25.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 5,"Räfflade dyckert 1000 st.",  89.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 5,"Hammaren Adam", 65.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Sörens Grova Limpa", 12.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Kaffe Gevalia Mörk",  29.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Glass Holland Eis", 32.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 2,"Myrgift Sudda Bort", 82.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 5,"Sandpapper blandat set",  32.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 3,"Munvatten Dentovit", 31.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 5,"Borrmaskinen Herbert", 310.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Makrillfiléer ½ kg",  38.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 6,"Golvlampan Hilda", 230.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 0,"Öl Pripps Blå 6-pack", 30.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 6,"Rakapparaten Orvar",  99.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 1,"Findus Köttfärssås 2,5 dl.", 16.00 ))
		cout << ERROR << endl;
	if (!cash.registerItem( 0,"Skruv 4x22 1000 st.", 80.50 ))
		cout << ERROR << endl;
	if (!cash.registerItem(-1,"Blå Castello  100 gr.",  19.50 ))
		cout << ERROR << endl << endl;

	cout.setf(ios::fixed);
	cout.setf(ios::showpoint);
	cout.precision(2);
	cout << setw(30) << left << "The total for this sail was:" << cash.batchTotal() << " SEK" << endl;
	cout << setw(30) << left << "Expected result should be: " << "1473.00 SEK" << endl << endl;

	return 0;
}

//CashRegister.cpp
class CashRegister{
public:
	CashRegister(char* fileName, int nrOfCategories);// The file contains
	~CashRegister(); // registered items and balances

	bool registerItem(int category, char* articleName, double amount);
	double batchTotal(){
		double total = _batchTotal;
		_batchTotal = 0;	// batchTotal() is expected to reset _batchTotal;
		return total;
	}
private:
	ofstream _file; // Here will registered items be saved
	int _nrOfCategories; // products are organized in categories
	double* _categorySums; // The vector will contain respective sum of each category sold during the day
	double _batchTotal; // sold since the last summation
};

// CashRegister.h
#ifndef CASHREGISTER_H
#define CASHREGISTER_H

	CashRegister(char* fileName, int nrOfCategories);
	bool registerItem(int category, char* articleName, double amount);
    double batchTotal();

#endif

any kind of help will be appreciated... thanks in advance

Sincere Regards