[Flow] Configuration validation error

[Rocky]

Hi,

I tried to run ./flow configuration:validate and get error saying 
"Error:
    The schema file
    "/vagrant/Typo3Flow/Packages/Framework/TYPO3.Flow/Resources/Private/Schema/
    Views.schema.yaml" is empty.
"
However /vagrant/Typo3Flow/Packages/Framework/TYPO3.Flow/Resources/Private/Schema/Views.schema.yaml has below content:
type: array
items:
  type: dictionary
  additionalProperties: FALSE
  properties:
    'requestFilter': {type: string, required: TRUE}
    'viewObjectName': {type: string, format: class-name}
    'options':
      # might be any option defined in the supportedOptions array of the viewObject
      type: dictionary
      additionalProperties: TRUE

Any idea what's going wrong?