시스템에서 iis 서버에 지정된 파일을 찾을 수 없습니다.

Question

웹 MVC 4 웹 응용 프로그램이 2 개 있습니다. MySql 연결 마녀가 MySql 데이터베이스에 연결되어 있으며 Windows IIS 서버에 다음 오류가 있습니다. 내 프로젝트에

The system cannot find the file specified

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 system cannot find the file specified

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 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.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) +1394
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) +1120
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) +964

나는 또한 MySql.Data, MySql.Data.Entity, MySql.Web, MySql.ConnectorNet.Data 및 MySql.ConnectorNet.Web에 대한 참조를 추가 한이 내의 Web.config입니다.

<configuration> 
    <configSections> 
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 
    </configSections> 
    <connectionStrings> 
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=aspnet-promotion_service-20161005163217;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnet-promotion_service-20161005163217.mdf" providerName="System.Data.SqlClient" /> 
    <add name="ConnStringPromotion" connectionString="server=localhost;UID=root;database=promotion;convert zero datetime=True" providerName="MySql.Data.MySqlClient" /> 
    <add name="ConnStringVeDev" connectionString="server=localhost;UID=root;database=promotion;convert zero datetime=True" providerName="MySql.Data.MySqlClient" /> 
    <remove name="LocalMySqlServer" /><add name="LocalMySqlServer" connectionString="" providerName="MySql.Data.MySqlClient" /></connectionStrings> 
    <appSettings> 
    <add key="webpages:Version" value="2.0.0.0" /> 
    <add key="webpages:Enabled" value="false" /> 
    <add key="PreserveLoginUrl" value="true" /> 
    <add key="ClientValidationEnabled" value="true" /> 
    <add key="UnobtrusiveJavaScriptEnabled" value="true" /> 
    </appSettings> 
    <system.web> 
    <compilation debug="true" targetFramework="4.5" /> 
    <httpRuntime targetFramework="4.5" /> 
    <!--<authentication mode="Forms"> 
     <forms loginUrl="~/Account/Login" timeout="2880" /> 
    </authentication>--> 
    <pages> 
     <namespaces> 
     <add namespace="System.Web.Helpers" /> 
     <add namespace="System.Web.Mvc" /> 
     <add namespace="System.Web.Mvc.Ajax" /> 
     <add namespace="System.Web.Mvc.Html" /> 
     <add namespace="System.Web.Optimization" /> 
     <add namespace="System.Web.Routing" /> 
     <add namespace="System.Web.WebPages" /> 
     </namespaces> 
    </pages> 
    <membership defaultProvider="MySQLMembershipProvider"> 
     <providers> 
     <remove name="MySQLMembershipProvider" /> 
     <add name="MySQLMembershipProvider" type="MySql.Web.Security.MySQLMembershipProvider, MySql.Web, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionStringName="LocalMySqlServer" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="true" applicationName="/" requiresUniqueEmail="false" passwordFormat="Clear" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="1" passwordAttemptWindow="10" passwordStrengthRegularExpression="" /> 
     </providers> 
    </membership><profile defaultProvider="MySQLProfileProvider"> 
     <providers> 
     <remove name="MySQLProfileProvider" /> 
     <add name="MySQLProfileProvider" type="MySql.Web.Profile.MySQLProfileProvider, MySql.Web, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionStringName="LocalMySqlServer" applicationName="/" /> 
     </providers> 
    </profile><roleManager defaultProvider="MySQLRoleProvider"> 
     <providers> 
     <remove name="MySQLRoleProvider" /> 
     <add name="MySQLRoleProvider" type="MySql.Web.Security.MySQLRoleProvider, MySql.Web, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionStringName="LocalMySqlServer" applicationName="/" /> 
     </providers> 
    </roleManager><siteMap defaultProvider="MySqlSiteMapProvider"> 
     <providers> 
     <remove name="MySqlSiteMapProvider" /> 
     <add name="MySqlSiteMapProvider" type="MySql.Web.SiteMap.MySqlSiteMapProvider, MySql.Web, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionStringName="LocalMySqlServer" applicationName="/" /> 
     </providers> 
    </siteMap><webParts> 
     <personalization defaultProvider="MySQLPersonalizationProvider"> 
     <providers> 
      <remove name="MySQLPersonalizationProvider" /> 
      <add name="MySQLPersonalizationProvider" type="MySql.Web.Personalization.MySqlPersonalizationProvider, MySql.Web, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" connectionStringName="LocalMySqlServer" applicationName="/" /> 
     </providers> 
     </personalization> 
    </webParts></system.web> 
    <system.webServer> 
    <validation validateIntegratedModeConfiguration="false" /> 

    <handlers> 
     <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> 
     <remove name="OPTIONSVerbHandler" /> 
     <remove name="TRACEVerbHandler" /> 
     <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" /> 
    </handlers></system.webServer> 
    <runtime> 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <dependentAssembly> 
     <assemblyIdentity name="DotNetOpenAuth.Core" publicKeyToken="2780ccd10d57b246" /> 
     <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="DotNetOpenAuth.AspNet" publicKeyToken="2780ccd10d57b246" /> 
     <bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-4.0.0.0" newVersion="4.0.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" /> 
     <bindingRedirect oldVersion="0.0.0.0-1.3.0.0" newVersion="1.3.0.0" /> 
     </dependentAssembly> 
     <dependentAssembly> 
     <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral" /> 
     <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> 
     </dependentAssembly> 
    </assemblyBinding> 
    </runtime> 
    <entityFramework> 
    <providers> 
     <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /> 
    <provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider></providers> 
    </entityFramework> 
<system.data> 
    <DbProviderFactories> 
     <remove invariant="MySql.Data.MySqlClient" name="MySQL Data Provider" /> 
     <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.9.9.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /> 
    <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.8.3.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /></DbProviderFactories> 
    </system.data></configuration> 

Answer 1

때때로는 SQL 서비스 및 기타 실행되지 않습니다

에 한번이 살펴보고,

http://support.sysonline.com/support/solutions/articles/4000016491-errmsg-a-network-related-or-instance-specific-error-occurred-while-establishing-a-connection-to-sql

http://www.lansweeper.com/kb/174/a-network-related-or-instance-specific-error-occurred.html