Server Error in '/' Application.

The network path was not found

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.ComponentModel.Win32Exception: The network path was not found

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:


[Win32Exception (0x80004005): The network path was not found]

[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +345
   System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +156
   System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +258
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +312
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +202
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +413
   System.Data.SqlClient.SqlConnection.Open() +128
   YAF.Classes.Data.MsSqlDbConnectionManager.get_OpenDBConnection() in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Classes\YAF.Classes.Data\mssql\MsSqlDbConnectionManager.cs:108
   YAF.Classes.Data.LegacyDb.forumpage_initdb(String& errorString, Boolean debugging) in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Classes\YAF.Classes.Data\mssql\LegacyDb.cs:3406
   YAF.Core.Services.Startup.StartupInitializeDb.RunService() in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Core\Services\Startup\StartupInitializeDb.cs:96
   YAF.Core.Services.Startup.BaseStartupService.Run() in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Core\Services\Startup\BaseStartupService.cs:91
   YAF.Core.IHaveServiceLocatorExtensions.<RunStartupServices>b__2(IStartupService service) in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Core\Extensions\IHaveServiceLocatorExtensions.cs:62
   YAF.Types.Extensions.EnumerableExtensions.ForEach(IEnumerable`1 list, Action`1 action) in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Types\Extensions\EnumerableExtensions.cs:48
   YAF.Core.IHaveServiceLocatorExtensions.RunStartupServices(IHaveServiceLocator serviceLocator) in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Core\Extensions\IHaveServiceLocatorExtensions.cs:61
   YAF.Core.Services.Startup.PageRequestLoadServices.RequestedPage_PreInit(Object sender, EventArgs e) in c:\Users\Saghari\Desktop\YAFNET-master\yafsrc\YAF.Core\Services\Startup\PageRequestLoadServices.cs:126
   System.Web.UI.Page.OnPreInit(EventArgs e) +11859212
   System.Web.UI.Page.PerformPreInit() +46
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1110


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3770.0