项目调试时出现如下错误，有谁知道是哪的事啊？

[PerfumeLily]

Server Error in '/' Application.
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[DBNETLIB][ConnectionOpen (Connect()).]SQL Server 不存在或拒绝访问。连接字符串属性无效
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.OleDb.OleDbException: [DBNETLIB][ConnectionOpen (Connect()).]SQL Server 不存在或拒绝访问。连接字符串属性无效

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[OleDbException (0x80004005): [DBNETLIB][ConnectionOpen (Connect()).]SQL Server 不存在或拒绝访问。
连接字符串属性无效]
System.Data.OleDb.OleDbConnection.ProcessResults(Int32 hr) +20
System.Data.OleDb.OleDbConnection.InitializeProvider() +57
System.Data.OleDb.OleDbConnection.Open() +203
MyOA.Component.SAOption.IncreaseCounter(Int32 pnNum)
Global.Session_Start(Object sender, EventArgs e)
System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e) +132
System.Web.SessionState.SessionStateModule.CompleteAcquireState() +514
System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +697
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() +66
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +173

[PerfumeLily]

有人知道吗？现在客户那都上不去，在等结果呢，大家帮帮忙

[ChelGuo]

你的连接字符串不规范啊，“连接字符串属性无效]”看到没有啊，检查你就知道了
我经常遇到，都是路径问题。

[jackalchan]

连接字符串不对，检查一下吧。

[Eray]

ODBC重新设一下。或者更改连接字符串。