c# lynclient:获取Lync用户的状态信息

我是c#新手;我有一个困难的时间找出什么是错误的在以下代码:

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Threading;
using Microsoft.Lync.Model;
namespace test3
{
    class Program
    {
        static void Main(string[] args)
        {
            LyncClient lyncClient;
            try
            {
                lyncClient = LyncClient.GetClient();
            }
            catch (ClientNotFoundException clientNotFoundException)
            {
                Console.WriteLine(clientNotFoundException);
                return;
            }
            catch (NotStartedByUserException notStartedByUserException)
            {
                Console.Out.WriteLine(notStartedByUserException);
                return;
            }
            catch (LyncClientException lyncClientException)
            {
                Console.Out.WriteLine(lyncClientException);
                return;
            }
            catch (SystemException systemException)
            {
                if (IsLyncException(systemException))
                {
                    // Log the exception thrown by the Lync Model API.
                    Console.WriteLine("Error: " + systemException);
                    return;
                }
                else
                {
                    // Rethrow the SystemException which did not come from the Lync Model API.
                    throw;
                }
            }
            Console.WriteLine("LYNC CLIENT STATE: ", lyncClient.State);
            // GET AVAILABILITY
            ContactAvailability currentAvailability = 0;
            try
            {
                currentAvailability = (ContactAvailability)
                                                          lyncClient.Self.Contact.GetContactInformation(ContactInformationType.Availability);
                Console.WriteLine("***********Console.WriteLine(currentAvailability)*********");
                // https://code.msdn.microsoft.com/lync/Lync-2013-Use-the-Lync-47ded7b4
                // https://msdn.microsoft.com/en-us/library/office/jj933083.aspx
                // https://msdn.microsoft.com/en-us/library/office/jj933159.aspx
                lyncClient.ContactManager.BeginSearch(
                "Humpty,Dumpty",
                (ar) =>
                {
                    SearchResults searchResults = lyncClient.ContactManager.EndSearch(ar);
                    if (searchResults.Contacts.Count > 0)
                    {
                        Console.WriteLine(
                            searchResults.Contacts.Count.ToString() +
                            " found");
                        foreach (Contact contact in searchResults.Contacts)
                        {
                            Console.WriteLine(
                                contact.GetContactInformation(ContactInformationType.DisplayName).ToString());
                            currentAvailability = (ContactAvailability)
                                                          contact.GetContactInformation(ContactInformationType.Availability);
                            Console.WriteLine(currentAvailability);
                        }
                    }
                },
                null);
                Console.WriteLine(ContactInformationType.Availability);
                Console.WriteLine(lyncClient.Self.ToString());
            }
            catch (LyncClientException e)
            {
                Console.WriteLine(e);
            }
            catch (SystemException systemException)
            {
                if (IsLyncException(systemException))
                {
                    // Log the exception thrown by the Lync Model API.
                    Console.WriteLine("Error: " + systemException);
                }
                else
                {
                    // Rethrow the SystemException which did not come from the Lync Model API.
                    throw;
                }
            }
        }
        static private bool IsLyncException(SystemException ex)
        {
            return
                ex is NotImplementedException ||
                ex is ArgumentException ||
                ex is NullReferenceException ||
                ex is NotSupportedException ||
                ex is ArgumentOutOfRangeException ||
                ex is IndexOutOfRangeException ||
                ex is InvalidOperationException ||
                ex is TypeLoadException ||
                ex is TypeInitializationException ||
                ex is InvalidComObjectException ||
                ex is InvalidCastException;
        }
    }
}

我在输出日志中看到以下内容:

The thread 0x32d4 has exited with code 259 (0x103).
The thread 0x31ec has exited with code 259 (0x103).
The thread 0x28d0 has exited with code 259 (0x103).
'test3.vshost.exe' (CLR v4.0.30319: test3.vshost.exe): Loaded 'c:'users'sw029693'documents'visual studio 2013'Projects'test3'test3'bin'Debug'test3.exe'. Symbols loaded.
'test3.vshost.exe' (CLR v4.0.30319: test3.vshost.exe): Loaded 'c:'users'sw029693'documents'visual studio 2013'Projects'test3'test3'bin'Debug'Microsoft.Lync.Model.dll'. Cannot find or open the PDB file.
Step into: Stepping over non-user code 'test3.Program.<>c__DisplayClass2..ctor'
'test3.vshost.exe' (CLR v4.0.30319: test3.vshost.exe): Loaded 'C:'windows'Microsoft.Net'assembly'GAC_MSIL'Accessibility'v4.0_4.0.0.0__b03f5f7f11d50a3a'Accessibility.dll'. Cannot find or open the PDB file.
A first chance exception of type 'System.TypeInitializationException' occurred in test3.exe
The thread 0xcd8 has exited with code 259 (0x103).
The thread 0x3580 has exited with code 259 (0x103).
The program '[9700] test3.vshost.exe' has exited with code 0 (0x0).

这似乎在以下代码中被打破了:

lyncClient = LyncClient.GetClient();

以下是我的参考文献:

任何想法吗?

上面的代码不能工作是修改版本的代码张贴在这里:https://code.msdn.microsoft.com/lync/Lync-2013-Use-the-Lync-47ded7b4

链接中的代码可以工作。我无法解读我的版本中缺少了什么。请帮助!