AWS Cloudformation DynamoDB警报

Question

我无法使用CloudFormation正确创建/链接CloudWatch警报和DynamoDB表。

    DynamoDBTable:
      Type: AWS::DynamoDB::Table
      Properties:
        AttributeDefinitions:
          -
            AttributeName: "Bucket"
            AttributeType: "S"
          -
            AttributeName: "Key"
            AttributeType: "S"
          -
            AttributeName: "IngestedDate"
            AttributeType: "S"  
        KeySchema:
          -
            AttributeName: "Bucket"
            KeyType: "HASH"
          - AttributeName: "Key"
            KeyType: "RANGE"
        GlobalSecondaryIndexes:
          -
            IndexName: dateIndex
            KeySchema:
              -
                AttributeName: "Key"
                KeyType: "HASH"
              - AttributeName: "IngestedDate"
                KeyType: "RANGE"
            Projection:
              ProjectionType: ALL
            ProvisionedThroughput: 
              ReadCapacityUnits: !Ref ReadCapacityUnits
              WriteCapacityUnits: !Ref WriteCapacityUnits
        ProvisionedThroughput: 
          ReadCapacityUnits: !Ref ReadCapacityUnits
          WriteCapacityUnits: !Ref WriteCapacityUnits
        TableName: !Join ["-", [!Ref UniqueIdentifier, "Table"]]
    DynamoDBAlarmThroughtputAlarm:
      DependsOn: DynamoDBTable
      Type: AWS::CloudWatch::Alarm
      Properties:
        ActionsEnabled: true
        AlarmActions:
          - !Ref ErrorSNSTopic
        AlarmDescription: For when the R/W of a dynamoDB table surpasses a certain throughput. 
        ComparisonOperator: GreaterThanOrEqualToThreshold 
        Dimensions:
          -
            Name: Table­Name
            Value: !Ref DynamoDBTable
        EvaluationPeriods: 1
        MetricName: ConsumedWriteCapacityUnits
        Namespace: AWS/DynamoDB
        Period: 300
        Statistic: Average
        Threshold: 1

警报可以创建，但会显示以下错误消息：联系服务器时出错。

当＆＃34;修改＆＃34;它，我看到未选择指标。这是一个错误吗？

的问候。