Substring Printing using a For loop

[Bolong Yu]

I am trying to read in the message I Love C++ & Loops!!! from a file in to a string variable and than print each letter of the message starting from the first letter using a for loop. I managed to print them but kept getting an error. please help

Here is what the output should look like.
------------------------------------------------------------
Task 6 - For Loop String building
------------------------------------------------------------
I
I
I L
I Lo
I Lov
I Love
I Love
I Love C
I Love C+
I Love C++
I Love C++
I Love C++ &
I Love C++ &
I Love C++ & L
I Love C++ & Lo
I Love C++ & Loo
I Love C++ & Loop
I Love C++ & Loops
------------------------------------------------------------

Here is my code

  //Task 6 - Substring printing

	//Output a divider
	cout << setfill('*') << setw(SCREEN_WIDTH) << ' '
		<< setfill(' ') << endl;

	cout << "Task 6 - For Loop String building" << endl;

	//Output a divider
	cout << setfill('*') << setw(SCREEN_WIDTH) << ' '
		<< setfill(' ') << endl;

	//Move the input cursor to the next line
	fin.ignore(100, '\n');


	getline(fin, message, '\n');


	messageLength = message.length();
	

	for (counter = 0; counter <= messageLength; counter++)
	{
		messageLetter = message.at(counter);

		cout << messageReconstructed << endl;

		messageReconstructed.append(messageLetter);

		//cout << messageReconstructed << endl;
		cout << endl;

	}
	

	//Output a divider
	cout << setfill('*') << setw(SCREEN_WIDTH) << ' '
		<< setfill(' ') << endl;

Here is my output.
------------------------------------------------------------
Task 6 - For Loop String building
------------------------------------------------------------
I
I
I L
I Lo
I Lov
I Love
I Love
I Love C
I Love C+
I Love C++
I Love C++
I Love C++ &
I Love C++ &
I Love C++ & L
I Love C++ & Lo
I Love C++ & Loo
I Love C++ & Loop
I Love C++ & Loops
------------------------------------------------------------


Here is the error that I kept getting.
http://i.imgur.com/VdnBLat.jpg