属性ID不能为空AWS CloudFormation

  NotifierRule:
    Type: "AWS::Events::Rule"
    Properties:
      Description: "Instance state change trigger for EC2 and RDS."
      EventPattern:
        source:
          - "aws.ec2"
        detail-type:
          - "EC2 Instance State-change Notification"
        detail:
          state:
            - "shutting-down"
            - "stopped"
            - "stopping"
            - "terminated"
          instance-id: !Ref EC2Instances
      Name: "InstanceHealthState-Monitoring-Rule"
      State: "ENABLED"
      Targets:
        - Arn:
            Fn::GetAtt:
              - "LambdaNotifier"
              - "Arn"

我得到 Property Id cannot be empty 当部署在堆栈上方时。来自通知规则资源的错误。我没有在模板中输入任何ID属性。请帮忙。