system.serviceModel有无效的子元素domainServices

Question

我得到了这个错误，并且真的不知道如何修复它：

元素'system.serviceModel‘有无效的子元素'domainServices’。期望的可能元素列表：‘行为、绑定、客户端、comContracts、commonBehaviors、诊断、serviceHostingEnvironment、扩展、protocolMapping、服务、standardEndpoints、跟踪、路由

配置：

<?xml version="1.0"?>
<configuration>
  <configSections>
    <sectionGroup name="system.serviceModel">
      <section name="domainServices" type="System.ServiceModel.DomainServices.Hosting.DomainServicesSection, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" allowDefinition="MachineToApplication" requirePermission="false" />
    </sectionGroup>
  </configSections>    
  <system.serviceModel>
    <domainServices>
      <endpoints>
        <!-- <add name="OData" type="System.ServiceModel.DomainServices.Hosting.ODataEndpointFactory, System.ServiceModel.DomainServices.Hosting.OData, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> -->
        <add name="soap" type="Microsoft.ServiceModel.DomainServices.Hosting.SoapXmlEndpointFactory, Microsoft.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
        <!-- <add name="JSON" type="Microsoft.ServiceModel.DomainServices.Hosting.JsonEndpointFactory, Microsoft.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> -->
      </endpoints>
    </domainServices>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceThrottling  maxConcurrentCalls="100"  maxConcurrentSessions="100"  maxConcurrentInstances="10"  />
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
 </configuration>

Answer 1

有时，如果我们针对比预期更早的.Net框架版本，可能会出现这种错误(“.Net有一个无效的子元素XXXX")。可以通过打开Properties，然后从Application选项卡修改目标框架来解决这个问题。希望这对外面的人有用。