Arkadaşlar asp.net de site yapıyorum ve sql bağlantı hatası aldım bi turlu cozemedim.
Hatanın Detayı

System.Data.SqlClient.SqlException was unhandled by user code
HResult=-2146232060
Message=Sunucuyla bağlantı kurulurken ağ ile ilgili veya orneğe ozel bir hata oluştu. Sunucu bulunamadı veya sunucuya erişilemiyor. Ornek adının doğru olduğunu ve SQL Server'ın uzak bağlantılara izin verdiğini doğrulayın. (provider: Named Pipes Provider, error: 40 - SQL Server icin bağlantı acılamadı)
Source=.Net SqlClient Data Provider
ErrorCode=-2146232060
Class=20
LineNumber=0
Number=2
Server=""
State=0
StackTrace:
konum: System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
konum: System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
konum: System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, Boolean withFailover)
konum: System.Data.SqlClient.SqlInternalConnectionTds.Att emptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover)
konum: System.Data.SqlClient.SqlInternalConnectionTds.Log inNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout)
konum: System.Data.SqlClient.SqlInternalConnectionTds.Ope nLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
konum: System.Data.SqlClient.SqlInternalConnectionTds..ct or(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
konum: System.Data.SqlClient.SqlConnectionFactory.CreateC onnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
konum: System.Data.ProviderBase.DbConnectionFactory.Creat ePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
konum: System.Data.ProviderBase.DbConnectionPool.CreateOb ject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
konum: System.Data.ProviderBase.DbConnectionPool.UserCrea teRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
konum: System.Data.ProviderBase.DbConnectionPool.TryGetCo nnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
konum: System.Data.ProviderBase.DbConnectionPool.TryGetCo nnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
konum: System.Data.ProviderBase.DbConnectionFactory.TryGe tConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
konum: System.Data.ProviderBase.DbConnectionInternal.TryO penConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
konum: System.Data.ProviderBase.DbConnectionClosed.TryOpe nConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
konum: System.Data.SqlClient.SqlConnection.TryOpenInner(T askCompletionSource`1 retry)
konum: System.Data.SqlClient.SqlConnection.TryOpen(TaskCo mpletionSource`1 retry)
konum: System.Data.SqlClient.SqlConnection.Open()
konum: Site.Default.btnKayit_Click(Object sender, EventArgs e) c:UsersMeteDocumentsVisual Studio 2013SiteBlogSiteSiteDefault.aspx.cs icinde: satır 26
konum: System.Web.UI.WebControls.Button.OnClick(EventArgs e)
konum: System.Web.UI.WebControls.Button.RaisePostBackEven t(String eventArgument)
konum: System.Web.UI.WebControls.Button.System.Web.UI.IPo stBackEventHandler.RaisePostBackEvent(String eventArgument)
konum: System.Web.UI.Page.RaisePostBackEvent(IPostBackEve ntHandler sourceControl, String eventArgument)
konum: System.Web.UI.Page.RaisePostBackEvent(NameValueCol lection postData)
konum: System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
InnerException: System.ComponentModel.Win32Exception
HResult=-2147467259
Message=Sistem belirtilen dosyayı bulamıyor
ErrorCode=-2147467259
NativeErrorCode=2
InnerException:


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