WebService 错误：无法加载协定为xxx的终结点配置部分，因为找到

当在vs 2008中添加服务引用后，如果“更新”服务引用，或“删除”该服务引用后再次加入后，在运行时会出现此错误。这是因为在“更新/删除”服务引用时，app.config文件并不会自动修改，在“更新”或再次“加入”后，会生成两个同样的“endpoint”，需要手工删除掉原有的才能正常运行。

第一次加入后的app.config

? <client>
??????????? <endpoint address="http://localhost/WSTest/TestDalWS.asmx" binding="basicHttpBinding"
??????????????? bindingConfiguration="TestDalWSSoap6" contract="WSServer.TestDalWSSoap"
??????????????? name="TestDalWSSoap6" />
???</client>

对应的 <bing> 也只有一个。

?<bindings>
??????????? <basicHttpBinding>
??????????????? <binding name="TestDalWSSoap6" closeTimeout="00:01:00" openTimeout="00:01:00"
??????????????????? receiveTimeout="00:10:00" sendTimeout="00:01:00" allowCookies="false"
??????????????????? bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
??????????????????? maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
??????????????????? messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
??????????????????? useDefaultWebProxy="true">
??????????????????? <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
??????????????????????? maxBytesPerRead="4096" maxNameTableCharCount="16384" />
??????????????????? <security mode="None">
??????????????????????? <transport clientCredentialType="None" proxyCredentialType="None"
??????????????????????????? realm="">
??????????????????????????? <extendedProtectionPolicy policyEnforcement="Never" />
??????????????????????? </transport>
??????????????????????? <message clientCredentialType="UserName" algorithmSuite="Default" />
??????????????????? </security>
??????????????? </binding>
??????????? </basicHttpBinding>
??????? </bindings>

?

在“更新”或再次“加入”后，会生成两个同样的“endpoint”，需要手工删除掉原有的才能正常运行。