Dynamics CRM Web Service Execute 返回“服务器无法处理请求”。答案

【问题标题】：Dynamics CRM Web Service Execute returns "Server was unable to process request."Dynamics CRM Web Service Execute 返回“服务器无法处理请求”。
【发布时间】：2012-12-09 14:21:19
【问题描述】：

DCRM 网络服务让我发疯了，

我正在尝试在两个潜在客户之间动态创建连接。我收到以下错误：

"0x80040216
  An unexpected error occurred.
  Platform
  An unexpected error occurred.

Type:Microsoft.Crm.CrmException ErrorCode:0x80040216
Object reference not set to an instance of an object."

这是我的代码：

Guid connectionRoleID = new Guid("64f33a74-0342-e211-b55e-00155d00041e");
connectionroleobjecttypecode connroleobjecttypecode = new connectionroleobjecttypecode() { connectionroleid = new Lookup(){Value = connectionRoleID}, associatedobjecttypecode = EntityName.lead.ToString()};

connection conn = new connection();
List<Property> list = new List<Property>();

Lookup lookup = new Lookup();
lookup.Value = customers[i].ID.Value.Value;
lookup.name = EntityName.lead.ToString();

Lookup lookup2 = new Lookup();
lookup2.Value = customers[j].ID.Value.Value;
lookup2.name = EntityName.lead.ToString();

conn.record1roleid = new Lookup() { name = "duplicate", Value = new Guid("64f33a74-0342-e211-b55e-00155d00041e") };
conn.record2roleid = new Lookup() { name = "duplicate", Value = new Guid("64f33a74-0342-e211-b55e-00155d00041e") };
list.Add(new LookupProperty(){Name = "record1id", Value = lookup});
list.Add(new LookupProperty(){Name = "record2id", Value = lookup2});
list.Add(new LookupProperty(){Name = "record1roleid", Value = conn.record1roleid});
list.Add(new LookupProperty() { Name = "record2roleid", Value = conn.record2roleid });

我尝试过跟踪（但没有帮助），在事件查看器中我收到错误消息，但没有任何有用的信息。

我要死在这里！请帮忙... :-)

【问题讨论】：

此片段信息不足。您是如何发现这里发生异常的？另外我很好奇这个类型代表什么：connectionroleobjecttypecode
这绝对是 CRM 4 的问题吗？连接是 2011 年的一项功能。

标签： web-services dynamics-crm dynamics-crm-4

【解决方案1】：

我认为是因为你在做：

conn.record1roleid = new Lookup() { name = "duplicate", Value = new Guid("64f33a74-0342-e211-b55e-00155d00041e") };

name 应该是实体的名称，例如联系，领导，事件。在这种情况下，我相信您应该使用：connectionrole。

conn.record1roleid = new Lookup() { name = "connectionrole", Value = new Guid("64f33a74-0342-e211-b55e-00155d00041e") };

我建议在Sample: Create a Connection (Early Bound)。

【讨论】：

【解决方案2】：

为要查找的实体添加类型

Lookup lookup2 = new Lookup();
lookup2.Value = customers[j].ID.Value.Value;
lookup2.name = EntityName.lead.ToString();
**lookup2.type = "lead";**

【讨论】：