With the following serverless.yml file:
```yml
service: localtest

provider:
  name: aws
  runtime: nodejs10.x

functions:
  hello:
    handler: handler.hello
    events:
    - stream:
        type: dynamodb
        arn:
          Fn::GetAtt: [fooTable, StreamArn]

resources:
  Resources:
    fooTable:
      Type: AWS::DynamoDB::Table
      Properties:
        TableName: fooTable
        AttributeDefinitions:
          - AttributeName: foo
            AttributeType: S
        KeySchema:
          - AttributeName: foo
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        StreamSpecification:
          StreamViewType: NEW_AND_OLD_IMAGES

plugins:
- "serverless-localstack"

custom:
  localstack:
    stages:
      - "local"
```
It fails with a generic error (500) on the deployment end and with `:ERROR:localstack.services.cloudformation.cloudformation_starter: Unable to parse and create resource "HelloEventSourceMappingDynamodbFooTable": 'NoneType' object has no attribute 'function_arn'` on the localstack end.
It deploys fine to AWS.
}
        }
    },
    'Kinesis::Stream': {
        'create': {
            'function': 'create_stream',
            'parameters': {
                'StreamName': 'Name',
                'ShardCount': 'ShardCount'
            },
            'defaults': {
                'ShardCount': 1
            }
        }
    },
    'StepFunctions::StateMachine': {
        'create': {
            'function': 'create_state_machine',
            'parameters': {
                'name': ['StateMachineName', PLACEHOLDER_RESOURCE_NAME],
                'definition': 'DefinitionString',
                'roleArn': lambda params, **kwargs: get_role_arn(params.get('RoleArn'), **kwargs)
            }
        }
    },
    'StepFunctions::Activity': {
        'create': {
            'function': 'create_activity',
            'parameters': {
                'name': ['Name', PLACEHOLDER_RESOURCE_NAME],