c# - system.serviceModel 具有无效的子元素 domainServices

Question

我收到这个错误，但真的不知道如何解决:

The element 'system.serviceModel' has invalid child element 'domainServices'. List of possible elements expected: 'behaviors, bindings, client, comContracts, commonBehaviors, diagnostics, serviceHostingEnvironment, extensions, protocolMapping, services, standardEndpoints, tracking, routing

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版本更旧的 .Net Framework 版本，就会出现这种错误(“system.ServiceModel 具有无效的子元素 XXXX”)。这可以通过打开项目属性然后从应用程序选项卡修改目标框架来解决。希望这对外面的人有用。