Web服务导航请求失败，HTTP状态为401：未授权错误

Question

我正在尝试更新Ms Dynamics Nav门户网站上的服务引用，但却收到错误消息。

      **This XML file does not appear to have any style information associated with it. The document tree is shown below.**

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Body>
    <s:Fault>
    <faultcode xmlns:a="urn:microsoft-dynamics-schemas/error">a:System.NotSupportedException</faultcode>
    <faultstring xml:lang="en-US">RecordReference</faultstring>
    <detail>
    <string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">RecordReference</string>
    </detail>
    </s:Fault>
    </s:Body>
    </s:Envelope>

此外，大多数服务都返回请求失败，HTTP状态为401：未经授权。错误，有任何补救措施吗？