ASP.NET：配置錯誤（“ /”應用程序中的服務器錯誤。）

Question

這個錯誤使我發瘋！ 我正在我的registration.aspx頁上工作，突然出現此錯誤，我花了幾天時間解決它，但沒有任何效果！ 最后，我刪除我的registration.aspx只是為了檢查沒有它的項目是否仍在工作，但沒有任何改變！

錯誤在第15行顯示為紅色：

> Server Error in '/' Application.
> 
> Configuration Error
> 
> Description: An error occurred during the processing of a
> configuration file required to service this request. Please review the
> specific error details below and modify your configuration file
> appropriately. 
> 
> Parser Error Message: Unrecognized element 'authentication'.
> 
> Source Error: 
> 
> 
> Line 13:   <system.web> 
> Line 14:     <pages validateRequest="false">
> Line 15:       <authentication mode="None"/> 
> Line 16:         <compilation debug="true" targetFramework="4.5"/> 
> Line 17:            <httpRuntime targetFramework="4.5"/>

web.config頁面：

<?xml version="1.0"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <configSections>
    <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="MyDatabase" connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\user\Desktop\MyWebsite\MyWebsite\MyWebsite\App_Data\MyDatabase.mdf;Integrated Security=True" providerName="System.Data.SqlClient"/>
  </connectionStrings>
  <system.web>
    <pages validateRequest="false">
      <authentication mode="None"/>
      <compilation debug="true" targetFramework="4.5"/>
      <httpRuntime targetFramework="4.5"/>
      <namespaces>
        <add namespace="System.Web.Optimization"/>
        <add namespace="Microsoft.AspNet.Identity"/>
      </namespaces>
      <controls>
        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/>
      </controls>
    </pages>
    <membership>
      <providers>
        <!--
        ASP.NET Membership is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear/>
      </providers>
    </membership>
    <profile>
      <providers>
        <!--
        ASP.NET Membership Profile is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear/>
      </providers>
    </profile>
    <roleManager>
      <!--
          ASP.NET Membership Role is disabled in this template. Please visit the following link http://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
      <providers>
        <clear/>
      </providers>
    </roleManager>
    <!--
            If you are deploying to a cloud environment that has multiple web server instances,
            you should change session state mode from "InProc" to "Custom". In addition,
            change the connection string named "DefaultConnection" to connect to an instance
            of SQL Server (including SQL Azure and SQL  Compact) instead of to SQL Server Express.
      -->
    <sessionState mode="InProc" customProvider="DefaultSessionProvider">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection"/>
      </providers>
    </sessionState>
    <compilation debug="true"/>
  </system.web>
  <system.webServer>
    <modules>
      <remove name="FormsAuthentication"/>
    </modules>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed"/>
        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089"/>
        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security.OAuth" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security.Cookies" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" culture="neutral" publicKeyToken="31bf3856ad364e35"/>
        <bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="mssqllocaldb"/>
      </parameters>
    </defaultConnectionFactory>
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
    </providers>
  </entityFramework>
  <appSettings>
    <!-- Beta configuration -->
    <add key="STSHost" value="auth.beta.agiv.be"/>
    <!-- See documentation https://auth.beta.agiv.be/framework/Documentation/index.html for a list of consumable services and their realms -->
    <add key="STSRealm" value="urn:agiv.be/salvador"/>
    <add key="ApplicationRealm" value="%Application realm%"/>
    <!-- Production Configuration, uncomment for use -->
    <!--
      <add key="STSHost" value="auth.agiv.be"/> 
      <add key="STSRealm" value="urn:agiv.be/sts"/>       
      <add key="ApplicationRealm" value="%Application realm%"/>
    -->
  </appSettings>
  <system.serviceModel>
    <client/>
    <behaviors>
      <endpointBehaviors>
        <behavior name="CertificateEndpointBehavior">
          <clientCredentials>
            <!-- Change this value to your certificate, and put this behavior on your client endpoint-->
            <clientCertificate findValue="%Certificate Subject Distinguished Name%" storeLocation="LocalMachine" storeName="My" x509FindType="FindBySubjectDistinguishedName"/>
          </clientCredentials>
        </behavior>
      </endpointBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

請幫忙嗎？

Answer 1

<authentication>不是<pages>的子級，應該嵌套在<system.web>

compilation和httpRuntime也需要移出。

嘗試這個

 <authentication mode="None"/>
 <compilation debug="true" targetFramework="4.5"/>
 <httpRuntime targetFramework="4.5"/>
 <pages validateRequest="false">
      <namespaces>
        <add namespace="System.Web.Optimization"/>
        <add namespace="Microsoft.AspNet.Identity"/>
      </namespaces>
      <controls>
        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/>
      </controls>
    </pages>

您還具有兩個compilation屬性。 刪除第二個。

Answer 2

該錯誤表明您無法識別<pages>下的<authentication>元素。 這是因為<authentication>必須直接位於<system.web> 。

<configuration>
    <system.web>
        <authentication mode="None" /> <!-- This is the line that needed to be moved -->
        <compilation debug="true" targetFramework="4.5"/>
        <httpRuntime targetFramework="4.5"/>
        <pages validateRequest="false">                
            <namespaces>
                <add namespace="System.Web.Optimization"/>
                <add namespace="Microsoft.AspNet.Identity"/>
            </namespaces>
            <controls>
                <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/>
            </controls>
        </pages>
    </system.web>
</configuration>

確保您注意錯誤消息，並在遇到此類錯誤時檢查文檔 。

Answer 3

檢查應用程序池，看起來您已將其置於集成模式而不是經典模式。