添加服务失败无法访问服务元数据。 错误：无法从http：// localhost获取元数据：

Question

    <?xml version="1.0"?>
<configuration>

  <appSettings>
    <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.6.1" />
    <httpRuntime targetFramework="4.6.1"/>
  </system.web>
  <system.serviceModel>
    <services>
      <service name="WcfService1.Service1" behaviorConfiguration="web">
        <endpoint address="" binding="webHttpBinding" behaviorConfiguration="webHttp" bindingConfiguration="" contract="WcfService1.IService1"></endpoint>
       <endpoint contract="IMetadataExchange" binding="mexHttpBinding" address="mex"/>
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
            <behavior name="webHttp">
              <webHttp/>
            </behavior>
          </endpointBehaviors>
      <serviceBehaviors>
        <behavior  name="web">
          <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
          <!--<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>-->
          <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="false"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <!--<protocolMapping>
        <add binding="basicHttpsBinding" scheme="https" />
    </protocolMapping>-->    
    <!--<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />-->
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
    <!--
        To browse web app root directory during debugging, set the value below to true.
        Set to false before deployment to avoid disclosing web app folder information.
      -->
    <directoryBrowse enabled="true"/>
  </system.webServer>

</configuration>

I am trying to add webHttpBinding setting to webconfig but get the following error:

Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata.

Answer 1

You have this problem because you have commented out serviceMetadata element in web behavior. Without it service metadata is not actually published. Just uncomment it back and the problem will be fixed:

<behavior name="web">
  <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
  <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
  <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
  <serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>