asp.net-mvc 无法加载文件或程序集“System.Web.Providers”
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Could not load file or assembly 'System.Web.Providers"
提问by Mohammad
hello this my config file
你好，这是我的配置文件
<?xml version="1.0"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
<sectionGroup name="elmah">
<section name="security" requirePermission="false" type="Elmah.SecuritySectionHandler, Elmah"/>
<section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah"/>
<section name="errorMail" requirePermission="false" type="Elmah.ErrorMailSectionHandler, Elmah"/>
<section name="errorFilter" requirePermission="false" type="Elmah.ErrorFilterSectionHandler, Elmah"/>
</sectionGroup>
</configSections>
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=aspnet-MedicallexiconProject-2012615153521;Integrated Security=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
<appSettings>
<add key="webpages:Version" value="2.0.0.0"/>
<add key="webpages:Enabled" value="true"/>
<add key="PreserveLoginUrl" value="true"/>
<add key="ClientValidationEnabled" value="true"/>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
</appSettings>
<system.web>
<compilation targetFramework="4.0" debug="true"/>
<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.Routing"/>
<add namespace="System.Web.WebPages"/>
</namespaces>
</pages>
<profile defaultProvider="DefaultProfileProvider">
<providers>
<add name="DefaultProfileProvider" type="System.Web.Providers.DefaultProfileProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/"/>
</providers>
</profile>
<membership defaultProvider="DefaultMembershipProvider">
<providers>
<add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
</providers>
</membership>
<roleManager defaultProvider="DefaultRoleProvider">
<providers>
<add name="DefaultRoleProvider" type="System.Web.Providers.DefaultRoleProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/"/>
</providers>
</roleManager>
<sessionState mode="InProc" customProvider="DefaultSessionProvider">
<providers>
<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/"/>
</providers>
</sessionState>
<httpModules>
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah"/>
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah"/>
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah"/>
</httpModules>
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules runAllManagedModulesForAllRequests="true">
<add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler"/>
<add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" preCondition="managedHandler"/>
<add name="ErrorFilter" type="Elmah.ErrorFilterModule, Elmah" preCondition="managedHandler"/>
</modules>
</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>
<dependentAssembly>
<assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-4.4.0.0" newVersion="4.4.0.0"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework"/>
</entityFramework>
<elmah>
<security allowRemoteAccess="false"/>
</elmah>
<location path="elmah.axd" inheritInChildApplications="false">
<system.web>
<httpHandlers>
<add verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah"/>
</httpHandlers>
</system.web>
<system.webServer>
<handlers>
<add name="ELMAH" verb="POST,GET,HEAD" path="elmah.axd" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode"/>
</handlers>
</system.webServer>
</location>
</configuration>
but when pulish on host rais this error Configuration Error
但是当在主机上推送时会出现此错误配置错误
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.
说明：在处理为该请求提供服务所需的配置文件期间发生错误。请查看下面的特定错误详细信息并适当修改您的配置文件。
Parser Error Message: Could not load file or assembly 'System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.
解析器错误消息：无法加载文件或程序集“System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35”或其依赖项之一。该系统找不到指定的文件。
Source Error:
源错误：
Line 44: <membership defaultProvider="DefaultMembershipProvider">
Line 45: <providers>
Line 46: <add name="DefaultMembershipProvider" type="System.Web.Providers.DefaultMembershipProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/"/>
Line 47: </providers>
Line 48: </membership>
采纳答案by Darin Dimitrov
I think you should set Copy Local=true and ensure to use same version of .net framework.
我认为您应该设置 Copy Local=true 并确保使用相同版本的 .net 框架。
回答by David Létourneau
Use this NuGet command to install your DLL automatically:
使用此 NuGet 命令自动安装 DLL：
Install-Package Microsoft.AspNet.Providers.Core
For more information about Nuget Packages, read thisand this one for a tutorial.
回答by Darin Dimitrov
Apparently you haven't deployed the System.Web.Providersassembly in your binfolder. Make sure it is marked with Copy Local=true?
显然你还没有System.Web.Providers在你的bin文件夹中部署程序集。确保它标有Copy Local=true?
回答by nealkernohan
In the Package Manager Console, I installed new packages as below and all was good in the world once again.
在包管理器控制台中，我安装了新包，如下所示，一切都很好。
Install-Package Microsoft.AspNet.Providers
Install-Package Microsoft.AspNet.Providers.Core
Install-Package Microsoft.AspNet.Providers
Install-Package Microsoft.AspNet.Providers.Core
回答by Pugz
For me, I had upgraded the version of Web Providers with NuGet and this broke my app. I had to go into web.config and manually update all assembly references in the provider sections to 2.0.0.0 instead of 1.0.0.0 since the new version of the System.Web.Providers assembly was 2.0.0.0.
对我来说，我已经使用 NuGet 升级了 Web Providers 的版本，这破坏了我的应用程序。我不得不进入 web.config 并手动将提供程序部分中的所有程序集引用更新为 2.0.0.0 而不是 1.0.0.0，因为 System.Web.Providers 程序集的新版本是 2.0.0.0。
