关于收款单用WebApi审核报{"无法绑定由多个部分组成的标识...

收款单用WebApi审核报{"无法绑定由多个部分组成的标识符 \"System.Object\"。"}
代码如下：
ApiClient client = new ApiClient("http://192.168.5.36/K3Cloud/");
object[] loginInfo = new object [] {
"f0921c0756ff999211e4433532c54ecd",//帐套Id
"总部**",//用户名
"******",//密码
2052};//语言id
var ret = client.Execute("Kingdee.BOS.WebApi.ServicesStub.AuthService.ValidateUser",loginInfo);//此处登陆通过
var result = JObject.Parse(ret)["LoginResultType"].Value();
string json = "{\"CreateOrgId\":100001,\"Numbers\":[\"SKD02150311317\"]}";
Console.WriteLine(json);
string msg = "";
// 登陆成功
if (result == 1)
{
msg=client.Execute("Kingdee.BOS.WebApi.ServicesStub.DynamicFormService.Submit", new object[] { "AR_RECEIVEBILL", json });//此处不通过抛出{"无法绑定由多个部分组成的标识符 \"System.Object\"。"}的异常
}