CloudWatch错误:规则JobFailureRule应在堆栈范围内创建,但找不到堆栈

我在CDK脚本中使用了以下逻辑进行设置 Cloudwatch alarm 并发送 SNS notification 当我的胶水工作失败了,但当我试着做的时候 npx synth 则抛出错误: Error: Rule at '{DVRD replication} JobFailureRule' should be created in the scope of a Stack, but no Stack found .

export interface InfraStackProps extends VpcStackProps {
  stageName?: string;
}

export class InfraStack extends VpcStack {
  constructor(scope: Construct, id: string, props: InfraStackProps ) {
    super(scope, id, props);
    // jobName. This is our AWS Glue script to monitor
    const jobFailedRule = new Rule(scope, '{DVRD replication} JobFailureRule', {
      eventPattern: {
        source: ['aws.glue'],
        detailType: ['Glue Job State Change'],
        detail: {
          state: ['FAILED', 'TIMEOUT', 'ERROR'],
          jobName: ['DVRD replication'],
        },
      },
    })
    
    //cloudwatch metric
    const numFailedJobsMetric = new cloudwatch.Metric({
      namespace: 'AWS/Events',
      metricName: 'TriggeredRules',
      statistic: 'Sum',
      dimensionsMap: {
        RuleName: jobFailedRule.ruleName,
      },
    })
    
    //cloudwatch alarm
    const numFailedJobsAlarm = new cloudwatch.Alarm(scope, '{DVRD replication} numFailedJobsAlarm', {
      metric: numFailedJobsMetric,
      threshold: 1,
      evaluationPeriods: 1,
    });
    
    
    // Adding an SNS action and an email registration 
    const notificationsTopic = new Topic(this, 'Topic'); 
    numFailedJobsAlarm.addAlarmAction(new SnsAction(notificationsTopic));
    notificationsTopic.addSubscription(new EmailSubscription('[email protected]'));