错误CS1729：'Microsoft.Synchronization.Files.FileSyncProvider'不包含带有3个参数的构造函数

Question

我正在使用MSDN中的示例代码进行文件同步。但是我收到了错误

  

错误CS1729：'Microsoft.Synchronization.Files.FileSyncProvider'确实如此   不包含为以下内容采用3个参数的构造函数   下面给出的方法中的行：

        sourceProvider = new FileSyncProvider(sourceReplicaRootPath, filter, options);
        destinationProvider = new FileSyncProvider( destinationReplicaRootPath, filter, options);

public static void SyncFileSystemReplicasOneWay( string sourceReplicaRootPath, string destinationReplicaRootPath, FileSyncScopeFilter filter, FileSyncOptions options)
{
    FileSyncProvider sourceProvider = null;
    FileSyncProvider destinationProvider = null;



    try
    {
        sourceProvider = new FileSyncProvider(sourceReplicaRootPath, filter, options);
        destinationProvider = new FileSyncProvider( destinationReplicaRootPath, filter, options);

        destinationProvider.AppliedChange += 
            new EventHandler<AppliedChangeEventArgs>(OnAppliedChange);
        destinationProvider.SkippedChange += 
            new EventHandler<SkippedChangeEventArgs>(OnSkippedChange);

        SyncOrchestrator agent = new SyncOrchestrator();
        agent.LocalProvider = sourceProvider;
        agent.RemoteProvider = destinationProvider;
        agent.Direction = SyncDirectionOrder.Upload; // Sync source to destination

        Console.WriteLine("Synchronizing changes to replica: " + 
            destinationProvider.RootDirectoryPath);
        agent.Synchronize();
    }
    finally
    {
        // Release resources
        if (sourceProvider != null) sourceProvider.Dispose(); 
        if (destinationProvider != null) destinationProvider.Dispose();
    }
}

问题：如果我检查FileSyncProvider FileSyncProvider，那么我可以看到一个接受3个参数的构造函数，但是如果我转到定义在VS2010中FileSyncProvider，我没有看到{% cache 300 header %} ... {% endcache %} # 300 seconds 的任何构造函数接受3个参数（当然这就是我得到错误的原因）。