I'm trying to implement amazon sqs in my current project. Currently with the help of Metric: CPU Utilization, Elastic beanstalk(EBS) server is deploying perfectly. But, when I'm trying to change the metric to Request Count, it it throwing ERROR Service:AmazonCloudFormation, Message:[/Resources/AWSEBCloudwatchAlarmHigh/Type/Dimensions/0/Value/Ref] 'null' values are not allowed in templates

But this configuration is throwing error. Any leads are appreciated.
