Amazon web services AWS设备场CreateDevicePool内部错误

我正在尝试使用C#中的AWS DeviceFarm sdk为项目创建设备池。我使用以下命令：

var createDevicePoolResponse = client.CreateDevicePool (new CreateDevicePoolRequest {
            Name = "CustomDevicePool",
            ProjectArn = projectArn,
            Rules = new List<Rule> { 
                new Rule { 
                    Attribute = DeviceAttribute.ARN,
                    Operator = RuleOperator.EQUALS_TO,
                    Value = "arn:aws:devicefarm:us-west-2::device:577DC08D6B964346B86610CFF090CD59"
                }
            }
        });

var createDevicePoolResponse=client.CreateDevicePool（新的CreateDevicePoolRequest{
Name=“CustomDevicePool”，
ProjectArn=ProjectArn，
规则=新列表{
新规则{
属性=设备属性.ARN，
运算符=规则运算符。等于，
Value=“arn:aws:devicefarm:us-west-2:：设备：577DC08D6B964346B86610CFF090CD59”
}
}
});

它思考了大约一分钟，然后我收到以下异常：

发出请求时出错，错误代码为InternalFailure和Http状态 代码错误。未返回进一步的错误信息 服务

---

ProjectArn是有效的。我还尝试了不同的规则，每次都会出现相同的错误。

解决了这个问题。值需要用方括号括起来，如下所示

var createDevicePoolResponse = client.CreateDevicePool (new CreateDevicePoolRequest {
                Name = "CustomDevicePool",
                ProjectArn = projectArn,
                Rules = new List<Rule> { 
                    new Rule { 
                        Attribute = DeviceAttribute.ARN,
                        Operator = RuleOperator.IN,
                        Value = "[\"arn:aws:devicefarm:us-west-2::device:D45C750161314335924CE0B9B7D2558E\"]"
                    }
                }
            });

var createDevicePoolResponse=client.CreateDevicePool（新的CreateDevicePoolRequest{
Name=“CustomDevicePool”，
ProjectArn=ProjectArn，
规则=新列表{
新规则{
属性=设备属性.ARN，
Operator=RuleOperator.IN，
Value=“[\”arn:aws:devicefarm:us-west-2:：设备：D45C750161314335924CE0B9B7D2558E\””
}
}
});