System.InvalidOperationException: 无法加载协定为“ServiceReference1.XXXXXXXXXXXXXXXX”的终结点配置部分，因为找到了该协定的多个终结点配置。请按名称指示首选的终结点配置部分。

   <system.serviceModel>
     <bindings>
       <basicHttpBinding>
         <binding name="testWebServiceSoap" />
       </basicHttpBinding>
       <customBinding>
         <binding name="testWebServiceSoap12">
           <textMessageEncoding messageVersion="Soap12" />
           <httpTransport />
         </binding>
       </customBinding>
     </bindings>
     <client>
       <endpoint address="http://localhost:3360/WebServices/testWebService.asmx"
           binding="basicHttpBinding" bindingConfiguration="testWebServiceSoap"
           contract="ServiceReference1.testWebServiceSoap" name="testWebServiceSoap" />
       <endpoint address="http://localhost:3360/WebServices/testWebService.asmx"
           binding="customBinding" bindingConfiguration="testWebServiceSoap12"
           contract="ServiceReference1.testWebServiceSoap" name="testWebServiceSoap12" />
     </client>
   </system.serviceModel>

导致的原因是多了一段,删除这里即可:

       <endpoint address="http://localhost:3360/WebServices/testWebService.asmx"
           binding="customBinding" bindingConfiguration="testWebServiceSoap12"
           contract="ServiceReference1.testWebServiceSoap" name="testWebServiceSoap12" />