Microsoft Sync Framework无效的强制转换异常

Question

我正在尝试使用Microsoft Sync Framework将本地数据库与在线数据库同步，但在尝试同步.SDF文件时，它会在该特定代码行显示以下错误消息时提供无效的强制转换异常。

Public Sub New()
        MyBase.New
        Me.InitializeSyncProviders()
        Me.InitializeSyncTables
        Me.OnInitialized
    End Sub

当在initializesyncproviders（）后面执行第二行代码时抛出异常。该函数后面有代码

 <System.Diagnostics.DebuggerNonUserCodeAttribute()> _
    Private Sub InitializeSyncProviders()
        'Create SyncProviders.
        Me.RemoteProvider = New LocalDataCache1ServerSyncProvider()
        'Dim serverConn As New SqlConnection("Data Source=RSERVER-PC; Initial Catalog=ST_TOKA_04; Integrated Security=false;user=sa;password=123")
        'Me.RemoteProvider = New SqlSyncProvider("godownSyncTableSyncGroup", serverConn)
        Me.LocalProvider = New LocalDataCache1ClientSyncProvider()
    End Sub

它在某一行上给出错误的功能。

Me.RemoteProvider = New LocalDataCache1ServerSyncProvider()