Routing error

I am getting

DrupalComponentSerializationExceptionInvalidDataTypeException: Unable to parse at line 6 (near ” requirements

This is my routing file

competition.form:
path: ‘/competition/CompetitionForm’
defaults:
_title: ”
_form: ‘DrupalcompetitionFormCompetitionForm’
requirements:
_permission: ‘access content’

This is the first time I have used Drupal 8 and I have no idea what is wrong. I am trying to add a new block with a form in it

Thanks

Drupal version: 


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