DocuSign - 创建一个给出Unspecified_Error的信封

Question

我已经在DocuSign中注册了我的帐户并使用了SOAP接口。我可以使用以下代码成功登录。

登录代码

  var req = new LoginRequest() { Body = body };
     var result = credential.Login(req);

     if (result.Body != null && result.Body.LoginResult != null)
     {
        var account = result.Body.LoginResult.Accounts.First();        
        var BaseUrl = account.BaseUrl;
        var AccountId = account.AccountID;
        var UserName = account.AccountName;
        var Email = account.Email;
     }

但是，我在创建信封时收到未指定的错误。 另外，我是否需要在创建信封时使用BaseUrl？

请求标题

 request = base.GetWebRequest(uri) as HttpWebRequest;
 request.Headers.Add("X-DocuSign-Authentication",
 string.Format("<DocuSignCredentials><Username>{0}</Username>
    <Password>{1}</Password><IntegratorKey>{2}</IntegratorKey></DocuSignCredentials>", 
     UserName, Password,integratorkey));

创建信封的代码

 //Create new envelope
  var envelope = new Envelope();
  envelope.AccountId = "***";
  envelope.Subject = "envelope subject";

  //Create the Receipents
  recipient[] recipients;
  recipients.Add(new recipient{ .... });
  envelope.Recipients = recipients

  //Grab and make the Documents 
  Document[] documents;
  documents.Add(new Document{ ... });
  envelope.Documents = documents;

  var docusignWebService = new DocuSignWebService();
  docusignWebService.UserName = "****"; // user email id
  docusignWebService.Password = "****"; //user password
  docusignWebService.AccountId = "****";

  //create envelope
  docusignWebService.CreateEnvelope(envelope);

我们对企业使用相同的代码并且它运行良好，但现在它不适用于个人帐户。 我们得到一个Unspecified_Error，内部异常为null。