✅ cant assign a value to a variable

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.PortableExecutable;
using System.Runtime.CompilerServices;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
using JustNom.Menu;
using JustNom.OrdersFolder;

namespace JustNom.Menu
{
    internal abstract class FoodMenu
    {
        public static int selectedNum;

        public static int numberOfLines;
        public abstract string TakeawayName();
        public abstract List<string> Toppings();
        public abstract List<string> Garnishes();
        public abstract List<string> LoadedBurgers();
        public abstract List<string> LoadedPizzas();
        public static void LoadFoodMenu()
        {
            Console.WriteLine("");
            Console.WriteLine("JustNom Order Manager");
            Console.WriteLine("");
            Console.WriteLine("Please select a menu to load.");
            Console.WriteLine("");

            string[] filePaths = Directory.GetFiles(@"C:\Users\Joe\Documents\Uni\Programming Portfolio\JustNom\JustNom\TestData", "*.nom");

            int count1 = 1;

            foreach (string file in filePaths)
            {
                Console.WriteLine($"{count1}. {Path.GetFileName(file)}");
                count1 = count1 + 1;
            }

            selectedNum = ConsoleHelpers.GetIntegerInRange(1, count1, "Please select a valid menu");

            string[] selectedFile = File.ReadLines(filePaths[selectedNum - 1]).ToArray();

            StreamReader reader = new StreamReader(filePaths[selectedNum - 1]);

            numberOfLines = 0;
            while (!reader.EndOfStream)
            {
                reader.ReadLine();
                numberOfLines++;
            }

            reader.BaseStream.Seek(0, SeekOrigin.Begin);

            TakeawayName = selectedFile[0];

            Console.WriteLine($"{selectedFile[2]}");
        }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection.PortableExecutable;
using System.Runtime.CompilerServices;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
using JustNom.Menu;
using JustNom.OrdersFolder;

namespace JustNom.Menu
{
    internal abstract class FoodMenu
    {
        public static int selectedNum;

        public static int numberOfLines;
        public abstract string TakeawayName();
        public abstract List<string> Toppings();
        public abstract List<string> Garnishes();
        public abstract List<string> LoadedBurgers();
        public abstract List<string> LoadedPizzas();
        public static void LoadFoodMenu()
        {
            Console.WriteLine("");
            Console.WriteLine("JustNom Order Manager");
            Console.WriteLine("");
            Console.WriteLine("Please select a menu to load.");
            Console.WriteLine("");

            string[] filePaths = Directory.GetFiles(@"C:\Users\Joe\Documents\Uni\Programming Portfolio\JustNom\JustNom\TestData", "*.nom");

            int count1 = 1;

            foreach (string file in filePaths)
            {
                Console.WriteLine($"{count1}. {Path.GetFileName(file)}");
                count1 = count1 + 1;
            }

            selectedNum = ConsoleHelpers.GetIntegerInRange(1, count1, "Please select a valid menu");

            string[] selectedFile = File.ReadLines(filePaths[selectedNum - 1]).ToArray();

            StreamReader reader = new StreamReader(filePaths[selectedNum - 1]);

            numberOfLines = 0;
            while (!reader.EndOfStream)
            {
                reader.ReadLine();
                numberOfLines++;
            }

            reader.BaseStream.Seek(0, SeekOrigin.Begin);

            TakeawayName = selectedFile[0];

            Console.WriteLine($"{selectedFile[2]}");
        }

    }
}