No stages / jobs for this pipeline with schedule job

Hi All,

we tried to use the last feature only except however we’re having issue with the schedule job.

with the following configuration file:
# GitLab uses docker in the background.
image: node:8.12.0

# You specify the stages. Those are the steps that GitLab will go through
# Order matters.
  - build

      - scripts
  - npm install --global lerna
  stage: build
  script: lerna bootstrap 

when we try to schedule a job, it’s not triggered saying "No stages / jobs for this pipeline ",
however when we push a change it’s triggering a pipeline.

Would you have an idea why it’s not working ?