[Win32Exception (0x80004005): The system cannot find the file specified]
[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.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling, SqlAuthenticationProviderManager sqlAuthProviderManager) +1431
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +1085
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) +70
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) +1110
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) +109
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +1529
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
MedAppointments.DataAccessLayer.SqlHelperParameterCache.DiscoverSpParameterSet(SqlConnection connection, String spName, Boolean includeReturnValueParameter) in D:\MedappointmentNew\MedAppointment\DataAccessLayer\Connection\SQLHelper.cs:2430
MedAppointments.DataAccessLayer.SqlHelperParameterCache.GetSpParameterSetInternal(SqlConnection connection, String spName, Boolean includeReturnValueParameter) in D:\MedappointmentNew\MedAppointment\DataAccessLayer\Connection\SQLHelper.cs:2602
MedAppointments.DataAccessLayer.SqlHelperParameterCache.GetSpParameterSet(String connectionString, String spName, Boolean includeReturnValueParameter) in D:\MedappointmentNew\MedAppointment\DataAccessLayer\Connection\SQLHelper.cs:2546
MedAppointments.DataAccessLayer.SqlHelper.ExecuteDataset(String connectionString, String spName, Object[] parameterValues) in D:\MedappointmentNew\MedAppointment\DataAccessLayer\Connection\SQLHelper.cs:541
MedAppointments.DataAccessLayer.OrganizationDAL.GetOrganizationBySubDomain(String subDomain) in D:\MedappointmentNew\MedAppointment\DataAccessLayer\OrganizationDAL.cs:105
MedAppointments.BusinessAccessLayer.OrganizationBAL.GetOrganizationBySubDomain(String subDomain) in D:\MedappointmentNew\MedAppointment\BusinessAccessLayer\OrganizationBAL.cs:401
Hospital.LoadHospital(String subDomain) in D:\MedappointmentNew\MedAppointment\MedAppointmentWeb\Hospital.aspx.cs:928
Hospital.DefaultSettings() in D:\MedappointmentNew\MedAppointment\MedAppointmentWeb\Hospital.aspx.cs:81
Hospital.Page_Load(Object sender, EventArgs e) in D:\MedappointmentNew\MedAppointment\MedAppointmentWeb\Hospital.aspx.cs:52
System.Web.UI.Control.OnLoad(EventArgs e) +106
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
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