Question

我检查了很多参考网站来解决这个问题，但没有人给出正确的解决方案。我在Windows Server 2008/2012上托管了我的应用程序，然后它无法正常工作。

实际上它在本地系统上工作正常但是在发布后，我在服务器上托管这个应用程序然后它不起作用。

以下是错误详情。

系统找不到指定的文件。

描述：在执行当前Web请求期间发生了未处理的异常enter code here。请查看堆栈跟踪，以获取有关错误及其在代码中的起源位置的更多信息。

异常详细信息：System.ComponentModel.Win32Exception：系统找不到指定的文件

来源错误：          在执行当前Web请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪来识别有关异常的起源和位置的信息。

Stack Trace:

[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: SQL Network Interfaces, error: 52 - Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)
  +5296071    System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
  stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +558

  System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo,
  SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout,
  Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean
  integratedSecurity, Boolean withFailover) +5308555

  System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo
  serverInfo, String newPassword, SecureString newSecurePassword,
  Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean
  withFailover) +145

  System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo
  serverInfo, String newPassword, SecureString newSecurePassword,
  Boolean redirectedUserInstance, SqlConnectionString connectionOptions,
  SqlCredential credential, TimeoutTimer timeout) +920

  System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer
  timeout, SqlConnectionString connectionOptions, SqlCredential
  credential, String newPassword, SecureString newSecurePassword,
  Boolean redirectedUserInstance) +307

  System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
  identity, SqlConnectionString connectionOptions, SqlCredential
  credential, Object providerInfo, String newPassword, SecureString
  newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString
  userConnectionOptions) +434

  System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
  options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo,
  DbConnectionPool pool, DbConnection owningConnection,
  DbConnectionOptions userOptions) +225

  System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool
  pool, DbConnectionOptions options, DbConnectionPoolKey poolKey,
  DbConnectionOptions userOptions) +37

  System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnectionOptions
  userOptions) +558

  System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnectionOptions
  userOptions) +67

  System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
  owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean
  allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions
  userOptions, DbConnectionInternal& connection) +1052

  System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection
  owningObject, TaskCompletionSource1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +78
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource1 retry, DbConnectionOptions
  userOptions, DbConnectionInternal& connection) +167

  System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection
  outerConnection, DbConnectionFactory connectionFactory,
  TaskCompletionSource1 retry, DbConnectionOptions userOptions) +143
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource1
  retry) +83    System.Data.SqlClient.SqlConnection.Open() +96

  System.Data.SqlClient.SqlProviderServices.UsingConnection(SqlConnection
  sqlConnection, Action1 act) +79.
System.Data.SqlClient.SqlProviderServices.UsingMasterConnection(SqlConnection sqlConnection, Action`1 act) +384.
System.Data.SqlClient.SqlProviderServices.GetDbProviderManifestToken(DbConnection connection) +241
System.Data.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection) +26

[ProviderIncompatibleException: The provider did not return a ProviderManifestToken string.]
System.Data.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection) +170
System.Web.Providers.ModelHelper.GetStorageMetadata(String providerName, DbConnection connection, String ssdl) +35
System.Web.Providers.ModelHelper.CreateMetadataWorkspace(String providerName, DbConnection connection, String csdl, String ssdl, String msl) +154
System.Web.Providers.ModelHelper.CreateEntityConnection(ConnectionStringSettings setting, String csdl, String ssdl, String msl) +109
System.Web.Providers.ModelHelper.CreateMembershipEntities(ConnectionStringSettings setting) +28
System.Web.Providers.DefaultMembershipProvider.GetPasswordWithFormat(String userName, Boolean updateLastLoginActivityDate, Int32& status, String& password, Int32& format, String& salt, Int32& failedPasswordAttemptCount, Int32& failedPasswordAnswerAttemptCount, Boolean& isApproved, DateTime& lastLoginDate, DateTime& lastActivityDate) +118
System.Web.Providers.DefaultMembershipProvider.CheckPassword(String userName, String password, Boolean updateLastActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +81
System.Web.Providers.DefaultMembershipProvider.ValidateUser(String username, String password) +105
System.Web.Security.Membership.ValidateUser(String username, String password) +26 Staff.Web.Account.Login.OnAuthenticate(Object sender, AuthenticateEventArgs e) in c:\Assembla\SVN\servicesdue\Staff.Web\Staff.Web\Account\Login.aspx.cs:28 System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) +9449786 System.Web.UI.WebControls.Login.AttemptLogin() +119.
System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +75 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37
System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +114
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +159.
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.
RaisePostBackEvent(String eventArgument) +10.

Answer 1

正如您在堆栈跟踪中看到的那样。它告诉你这个问题。最有可能的是，您与数据库的连接已关闭，或者您无法连接数据库服务器。

“发生与网络相关或特定于实例的错误建立与SQL Server的连接。找不到服务器或无法访问。验证实例名称是否正确 SQL Server配置为允许远程连接。（提供者：SQL 网络接口，错误：52 - 无法找到本地数据库运行时安装。验证SQL Server Express是否正确安装并启用了本地数据库运行时功能。）]“

此外，您需要研究：

从Web服务器到数据库服务器的

1] Firewall settings
2]连接字符串错误
3]启用适当的协议管道/ tcp-ip
4]检查SQL Server service是否正在运行

系统找不到Windows Server 2012中指定的文件

1 个答案: