The name '____' does not exist in current context.

Question

 There areas that this error is occurring is highlighted in yellow (there are only three). 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace TaskoneBinaryConverstion

{

class Program

{

static string userNumber = "";

static int answer = 0;

static Boolean userInputOk = false;

static void Main()

{

do

{

Console.WriteLine("This program will convert binary to decimal");

//Give user instructions

Console.WriteLine("Please enter a binary number");

//read in the user binary number assign it to a variable

userNumber = Console.ReadLine();

if (userNumber != "")

{

userInputOk = true;

foreach (char currentChar in userNumber)

{

//checks individual digit to ensure it is either a 1 or 0

if (currentChar != '1' && currentChar != '0')

{

userInputOk = false;

Console.Clear();

Console.WriteLine("An error has occurred, please only use 1 or 0");

}

{

}

}

}

else

//if the user did not input either a one or zero the program will not preform the function and

//will re-iterate the question

userInputOk = false;

{

}

}

while (userInputOk == false);

// end loop when all digits have been delt with

//display convereted number

currentMultiplicationFactor();

Console.WriteLine("Answer= " + answer);

//prevent console from closing

Console.ReadKey();

//prevents program from crashing

//loop through the given number (string)

//starting from the last number down to the first number

}

//read from file method... this is the method which gets called if a valid file is found at the beginning.

private static void readFromFile()

{

//readFromFile binary lines from set file

String[] tempCodes = File.ReadAllLines(armCodeFile);

//execute the following code for each line of the file

foreach (string currentcode in tempCodes)

{

//set the code to the usernumber variable

UserNumber = currentcode;

Calculatedecimal();

//display the answer

Console.WriteLine(currentcode + " To decimal = " + answer);

}

}

private static void currentMultiplicationFactor()

{

answer = 0;

int currentMultiplicationFactor = 1;

for (int index = userNumber.Length - 1; index > -1; index--)

{

if (userNumber[index] == '1')

{

answer += currentMultiplicationFactor;

}

currentMultiplicationFactor *= 2;

}

}

}

}