Trong dự án của tôi, tôi sử dụng SQL CE cơ sở dữ liệu 3.5 với khuôn khổ tổ chức và sau đó this article nhưng tôi có ngoại lệ này:Không thể tải các thành phần có nguồn gốc của SQL Server Compact tương ứng với nhà cung cấp ADO.NET
Unable to load the native components of SQL Server Compact corresponding to the ADO.NET provider of version 8080. Install the correct version of SQL Server Compact. Refer to KB article 974247 for more details.
Tất cả chi tiết
System.Data.SqlServerCe.SqlCeException was unhandled
Message=Unable to load the native components of SQL Server Compact corresponding to the ADO.NET provider of version 8080. Install the correct version of SQL Server Compact. Refer to KB article 974247 for more details.
Source=""
HResult=-1
NativeError=-1
StackTrace:
at System.Data.SqlServerCe.NativeMethods.LoadNativeBinaries()
at System.Data.SqlServerCe.SqlCeConnection..ctor()
at System.Data.SqlServerCe.SqlCeProviderFactory.CreateConnection()
at System.Data.EntityClient.EntityConnection.GetStoreConnection(DbProviderFactory factory)
at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString)
at System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName)
at DAL.OimDBEntities..ctor()
at DAL.OimRepository..ctor()
at Microsoft.Rtc.Collaboration.Sample.SubscribePresenceView.UCMASampleSubscribePresenceView.Subscribe()
at Microsoft.Rtc.Collaboration.Sample.SubscribePresenceView.UCMASampleSubscribePresenceView.Run()
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.DllNotFoundException
Message=Unable to load DLL 'sqlceme35.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
Source=System.Data.SqlServerCe
TypeName=""
StackTrace:
at System.Data.SqlServerCe.NativeMethods.GetSqlCeVersionInfo(IntPtr& pwszVersion)
at System.Data.SqlServerCe.NativeMethods.LoadValidLibrary(String modulePath, Int32 moduleVersion)
at System.Data.SqlServerCe.NativeMethods.LoadNativeBinaries()
InnerException:
Vì vậy, bạn có tham khảo bài viết KB 974247 không? –