Invalid Yaml: could not determine a constructor for the tag !Sub in 'reader', line 8, column 27: - !Sub 'elasticbeanstalk-${AWS::Re ... ^ , JSON exception: Invalid JSON: Unexpected character (R) at position 0.. Update the configuration file.

[jpswade]

From the documents:
!Sub 'arn:aws:ec2:${AWS::Region}:${AWS::AccountId}:vpc/${vpc}'

What I'm using:
!Sub 'elasticbeanstalk-${AWS::Region}-${AWS::AccountId}'

The error:

Invalid Yaml: could not determine a constructor for the tag !Sub in 'reader', line 8, column 27: - !Sub 'elasticbeanstalk-${AWS::Re ... ^ , JSON exception: Invalid JSON: Unexpected character (R) at position 0.. Update the configuration file.

[joshbean]

Closing this issue or pull request in advance of archiving this repo. For more information about the decision to archive this repo (and others in the 'awsdocs' org), see the announcement on the AWS News Blog.