请求高手帮助，用asp.net做网站连接access数据库时，出现 80040154错误。

“/”应用程序中的服务器错误。
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检索 COM 类工厂中 CLSID 为 {2206CDB2-19C1-11D1-89E0-00C04FD7A829} 的组件时失败，原因是出现以下错误: 80040154。 
说明: 执行当前 Web 请求期间，出现未处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。 

异常详细信息: System.Runtime.InteropServices.COMException: 检索 COM 类工厂中 CLSID 为 {2206CDB2-19C1-11D1-89E0-00C04FD7A829} 的组件时失败，原因是出现以下错误: 80040154。

源错误: 


行 25: OleDbCommand cmd = new OleDbCommand();//声明一个OleDbCommand的对象,并将该对象cmd实例化
行 26: cmd.Connection = con;
行 27: con.Open();//打开数据库连接
行 28: OleDbDataAdapter sda = new OleDbDataAdapter("select top 9 * from tb_xinwen order by fabushijian desc", con);//从新闻表tb_xinwen按发布时间fabushijian的降序排序
行 29: DataSet ds = new DataSet();//声明一个DataSet的对象,并将该对象ds实例化
 

源文件: e:\WebSite3\Default.aspx.cs 行: 27 

堆栈跟踪: 


[COMException (0x80040154): 检索 COM 类工厂中 CLSID 为 {2206CDB2-19C1-11D1-89E0-00C04FD7A829} 的组件时失败，原因是出现以下错误: 80040154。]
  System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
  System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +103
  System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +261
  System.RuntimeType.CreateInstanceImpl(Boolean publicOnly) +14
  System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +1036
  System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +114
  System.Data.OleDb.OleDbConnectionInternal.CreateInstanceDataLinks() +96
  System.Data.OleDb.OleDbConnectionInternal.GetObjectPool() +130

[InvalidOperationException: .Net Framework 数据提供程序要求 Microsoft Data Access Components(MDAC)。请安装 Microsoft Data Access Components(MDAC) 2.6 或更高版本。]
  System.Data.OleDb.OleDbConnectionInternal.GetObjectPool() +166
  System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +51
  System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +53
  System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27
  System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +47
  System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
  System.Data.OleDb.OleDbConnection.Open() +37
  Default2.xinwenfillgv() in e:\WebSite3\Default.aspx.cs:27
  Default2.Page_Load(Object sender, EventArgs e) in e:\WebSite3\Default.aspx.cs:17
  System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
  System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
  System.Web.UI.Control.OnLoad(EventArgs e) +99
  System.Web.UI.Control.LoadRecursive() +47
  System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061

 


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版本信息: Microsoft .NET Framework 版本:2.0.50727.1891; ASP.NET 版本:2.0.50727.1879

可能是你的MDAC文件坏了,到这儿下载一个修复文件修复了试试:
http://ishare.iask.sina.com.cn/f/20708176.html?from=like