Неверный запрос WCF. Метаданные содержат ссылку, которую нельзя разрешить

Я переименовал файл контракта на обслуживание в своей службе WCF, и теперь при попытке добавить или обновить ссылку на службу возникает ошибка:

There was an error downloading 'http://localhost:8733/Design_Time_Addresses/MessengerService/MessengerService/mex/$metadata'. The request failed with HTTP status 400: Bad Request. Metadata contains a reference that cannot be resolved: 'http://localhost:8733/Design_Time_Addresses/MessengerService/MessengerService/mex'. Metadata contains a reference that cannot be resolved: 'http://localhost:8733/Design_Time_Addresses/MessengerService/MessengerService/mex'. If the service is defined in the current solution, try building the solution and adding the service reference again.

Услуга развернута в WcfSvcHost. Мой App.config:

<?xml version = "1.0" encoding = "utf-8" ?>
<configuration>

  <appSettings>
    <add key = "aspnet:UseTaskFriendlySynchronizationContext" value = "true" />
  </appSettings>
  <system.web>
    <compilation debug = "true" />
  </system.web>
  <system.serviceModel>
    <services>
      <service name = "MessengerService.ServiceLogic.MessengerService">
        <endpoint address = "" binding = "wsDualHttpBinding" contract = "MessengerService.Contracts.ServiceContracts.IMessengerService">
          <identity>
            <dns value = "localhost" />
          </identity>
        </endpoint>
        <endpoint address = "mex" binding = "mexHttpBinding" contract = "IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8733/Design_Time_Addresses/MessengerService/MessengerService/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled = "True" httpsGetEnabled = "True"/>
          <serviceDebug includeExceptionDetailInFaults = "False" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

</configuration>

Как это исправить?