如何解決HTTP錯誤500.19 - 內部服務器錯誤？

Question

我一直在MVC4項目中工作。它正在運行，但過了一段時間，我得到了下面的錯誤。我試圖找出它並刪除那些重複的實體框架條目。但它不與數據庫連接。我該如何解決這個問題？

HTTP Error 500.19 - Internal Server Error 

Detailed Error Information: 
Module  IIS Web Core 
Notification  BeginRequest 
Handler Not yet determined 
Error Code  0x800700b7 
Config Error  There is a duplicate 'entityFramework' section defined 
Config File \\?\C:\Users\Jafar\Desktop\MVC\AcadamicRecycling\BootstrapPager\web.config 

Config Source: 

    8:  <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 
    9:  <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
    10: </configSections> 

//這是網絡配置文件：當我打開配置文件時，我得到了這個文件！

<?xml version="1.0" encoding="utf-8"?> 
<!-- 
    For more information on how to configure your ASP.NET application, please visit 
    http://go.microsoft.com/fwlink/?LinkId=169433 
    --> 
<configuration> 
    <configSections> 
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
    </configSections> 
    <connectionStrings> 
    <add name="EmployeeDb" 
     connectionString="=;server=SQl" providerName="System.Data.SqlClient" /> 
    </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> 
    </system.web> 
    <system.webServer> 
    <validation validateIntegratedModeConfiguration="false" /> 
    <handlers> 
     <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" /> 
     <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" /> 
     <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> 
     <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" /> 
     <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" /> 
     <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" /> 
    </handlers> 
    </system.webServer> 
    <runtime> 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
     <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> 
    </assemblyBinding> 
    </runtime> 
    <entityFramework> 
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"> 
     <parameters> 
     <parameter value="v11.0" /> 
     </parameters> 
    </defaultConnectionFactory> 
    <providers> 
     <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /> 
    </providers> 
    </entityFramework> 
</configuration> 

//這是我的項目中可用的web配置文件。當我打開並檢查它時，我沒有找到重複的實體框架。

Answer 1

如果你可以發佈你的web.config（刪除任何證書類型的東西），這將有所幫助。

但消息看起來很清楚。你有一個重複的實體框架部分。

它在錯誤消息中顯示的行是它正在討論的相關行。

如果你進入你的web.config，你可能會看到兩個部分，看起來像

<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 

只需刪除其中的一個，然後再試一次。