Необработанное исключение типа "System.UnauthorizedAccessException" в System.Speech.dll - C#

Формулировка задачи:

Когда начал компилировать такая вот ошибка вышла : "Необработанное исключение типа "System.UnauthorizedAccessException" в System.Speech.dll". А вот код:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Speech.Recognition;
using System.Speech.Synthesis;

class Program
{
 
    public SpeechRecognitionEngine recognitionEngine;
    string message;
    SpeechSynthesizer speaker = new SpeechSynthesizer();
    public static void Main()
    {
        Program prgrm = new Program(); prgrm.Init();
        //process commands
        while (true)
        {
            prgrm.message = prgrm.recognise(); prgrm.command(prgrm.message);
        }

    }
    public void Init()
    {
        recognitionEngine = new SpeechRecognitionEngine(); recognitionEngine.SetInputToDefaultAudioDevice(); recognitionEngine.SpeechRecognized += (s, args) =>
        {
            foreach (RecognizedWordUnit word in args.Result.Words)
            {
                if (word.Confidence > 0.5f) message += word.Text + " ";
            }
 
        }; recognitionEngine.LoadGrammar(new DictationGrammar());
        Console.WriteLine(message);
    }
    public void speak(string message)
    {
        speaker.Rate = 1; speaker.Volume = 100; speaker.Speak(message);
    }
    public string recognise()
    {
        Console.WriteLine(message); recognitionEngine.RecognizeAsyncStop();
        return message;
    }
    public void command(string message)
    {
        switch (message)
        {
            case "hi": speak("Hello Sir");
                Console.WriteLine(message);
                break;
            case "jarvis Chrome": speak("Opening Google Chrome"); speak("Please Wait");
                Console.WriteLine("Please Wait");
                System.Diagnostics.Process.Start("google chrome.lnk");
                break;
            case "jarvis time": speak("Sir , The Time is " + DateTime.Now.ToString("h:mm tt"));
                break;
            case "jarvis date": speak("Sir , The Date is " + DateTime.Now.Date);
                break;
            case "jarvis day": speak("Sir, The Day is " + DateTime.Now.DayOfWeek);
                break;
            case "thank you": speak("You'r welcome sir");
                break;
            case "":
                break;
            default:
                Console.WriteLine(message);
                break;
        }

    }
 
}

Что делать??

Решение задачи: «Необработанное исключение типа "System.UnauthorizedAccessException" в System.Speech.dll»

textual
                            Листинг программы 
                        

                            using System;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Speech.Recognition;
using System.Speech.Synthesis;
using System.Windows.Forms;
 
namespace SpeechAPI
{
    public partial class Form1 : Form
    {
        private SpeechRecognitionEngine recognitionEngine;
        private SpeechSynthesizer speaker = new SpeechSynthesizer();
 
        public Form1()
        {
            InitializeComponent();
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            speaker.Rate = 1;
            speaker.Volume = 100;
 
            recognitionEngine = new SpeechRecognitionEngine(new CultureInfo("en-US"));
            recognitionEngine.SetInputToDefaultAudioDevice();
            recognitionEngine.SpeechRecognized += RecognitionEngine_SpeechRecognized;
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("hi")));
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("jarvis Chrome")));
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("jarvis time")));
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("jarvis date")));
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("jarvis day")));
            recognitionEngine.LoadGrammar(new Grammar(new GrammarBuilder("thank you")));
            recognitionEngine.RecognizeAsync(RecognizeMode.Multiple);
        }
 
        private void RecognitionEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            if (e.Result.Words.All(w => w.Confidence > 0.4f))
                Command(e.Result.Text);
        }
 
        public void Command(string message)
        {
            switch (message)
            {
                case "hi":
                    speaker.Speak("Hello Sir");
                    break;
                case "jarvis Chrome":
                    speaker.Speak("Opening Google Chrome");
                    speaker.Speak("Please Wait");
                    System.Diagnostics.Process.Start("google chrome.lnk");
                    break;
                case "jarvis time":
                    speaker.Speak("Sir , The Time is " + DateTime.Now.ToString("h:mm tt"));
                    break;
                case "jarvis date":
                    speaker.Speak("Sir , The Date is " + DateTime.Now.Date);
                    break;
                case "jarvis day":
                    speaker.Speak("Sir, The Day is " + DateTime.Now.DayOfWeek);
                    break;
                case "thank you":
                    speaker.Speak("You'r welcome sir");
                    break;
                default:
                    break;
            }
        }
    }
}
                        