无法让wcf使用nettcpbinding

下面是我的app.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.serviceModel>
    <services>
      <service name="Indexer">
        <endpoint address="net.tcp://localhost:8000/Indexer/" binding="netTcpBinding"
          bindingConfiguration="TransactionalTCP" contract="Me.IIndexer" />
      </service>
      <service name = "Indexer" behaviorConfiguration = "MEXGET">
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8000/"/>
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name = "MEXGET">
          <serviceMetadata httpGetEnabled = "true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <netTcpBinding>
        <binding name="TransactionalTCP"
           transactionFlow="true"
         />
      </netTcpBinding>
    </bindings>
  </system.serviceModel>
</configuration>

由于某种原因,我无法访问运行此命令的计算机上的WCF服务。 有人能指出错误吗?我已经启动并运行了nettcpbinding服务。

当我在HTTP中运行相同的文件时,它可以通过以下.config文件正常工作

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="IndexerServiceBehavior">
          <serviceMetadata httpGetEnabled="true" httpGetUrl="http://localhost:8080/Indexer/"/>
          <serviceDebug includeExceptionDetailInFaults="True" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <services>
      <service name="Indexer" behaviorConfiguration="IndexerServiceBehavior">
        <endpoint address="http://localhost:8080/Indexer/" binding="basicHttpBinding"
            bindingConfiguration="" name="HTTP" contract="IIndexer" />
        <endpoint address="http://localhost:8080/Indexer/MEX/" binding="mexHttpBinding"
            bindingConfiguration="" name="MEX" contract="IMetadataExchange" />
      </service>
    </services>
  </system.serviceModel>
</configuration>

我真的不知道我做错了什么……