Scheduled YAML Pipeline failure

I have created one azure devops YAML pipeline and I have defined the following file path 

The scheduled_run.yml file contains the followings : 

trigger: none

schedules:
- cron: "0 0 * * *"
  displayName: "Daily midnight build"
  branches:
    include:
    - master
  always: true

steps:
- pwsh: .\updateAccessToken.ps1

However when I execute the job is failed with the following error : 

Regarding to the documentation [https://docs.microsoft.com/en-us/azure/devops/pipelines/yaml-schema/schedules-cron?view=azure-pipelines#examples] seems correctly and supported. 

Is there something that is missing ? 

Thanks in advance