“/”应用程序中的服务器错误。

找不到网络路径。

说明: 执行当前 Web 请求期间,出现未经处理的异常。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.ComponentModel.Win32Exception: 找不到网络路径。

源错误:

只有在调试模式下进行编译时,生成此未经处理的异常的源代码才会显示出来。若要启用此功能,请执行以下步骤之一,然后请求 URL:

1. 在产生错误的文件的顶部添加一条“Debug=true”指令。例如:

  <%@ Page Language="C#" Debug="true" %>

或:

2. 将以下的节添加到应用程序的配置文件中:

<configuration>
   <system.web>
       <compilation debug="true"/>
   </system.web>
</configuration>

请注意,第二个步骤将使给定应用程序中的所有文件在调试模式下进行编译;第一个步骤仅使该特定文件在调试模式下进行编译。

重要事项: 以调试模式运行应用程序一定会产生内存/性能系统开销。在部署到生产方案之前,应确保应用程序调试已禁用。

堆栈跟踪:


[Win32Exception (0x80004005): 找不到网络路径。]

[SqlException (0x80131904): 在与 SQL Server 建立连接时出现与网络相关的或特定于实例的错误。未找到或无法访问服务器。请验证实例名称是否正确并且 SQL Server 已配置为允许远程连接。 (provider: Named Pipes Provider, error: 40 - 无法打开到 SQL Server 的连接)]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1409
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +110
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +950
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +143
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +17
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +136
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +445
   System.Data.SqlClient.SqlConnection.Open() +341
   VSame.Data.SqlEntry.ConnectionContext..ctor(DbDriver dd) +41
   VSame.Data.SqlEntry.DataProvider.NewConnection(CallbackVoidHandler callback) +51
   VSame.Data.SqlEntry.DataProvider.UsingConnection(CallbackVoidHandler callback) +47
   VSame.Data.SqlEntry.DataProvider.ExecuteDataReader(SqlStatement sql, Type returnType, CallbackObjectHandler`1 callback) +97
   VSame.Data.DbContext.DataLoadDirect(IProcessor ip, Type returnType, Type dbObjectType, SqlStatement sql, Boolean useIndex) +204
   VSame.Data.DbContext.DataLoad(IProcessor ip, Type returnType, Type dbObjectType, FromClause from, Condition iwc, OrderBy oc, Range lc, Boolean isDistinct) +131
   VSame.Data.DbContext.FillCollection(IList list, Type returnType, Type dbObjectType, FromClause from, Condition iwc, OrderBy oc, Range lc, Boolean isDistinct) +50
   VSame.Data.DbContext.GetObject(Type t, Condition c, OrderBy ob, Range r) +52
   VSame.Data.DbContext.GetObject(Condition c) +69
   VSame.Data.DbEntry.GetObject(Condition c) +83
   _Coupon.Page_Load(Object sender, EventArgs e) +332
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +85
   System.Web.UI.Control.OnLoad(EventArgs e) +86
   System.Web.UI.Control.LoadRecursive() +117
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2092


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.7.2106.0