Github actions workflow error: You have an error in your yaml syntax - github

Question

I am trying to deploy to google cloud engine using github actions and my yaml config is as follows,
name: "Deploy to GAE"
on:
push:
branches: [production]
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout#v2
- name: Install Dependencies
run: composer install -n --prefer-dist
- name: Generate key
run: php artisan key:generate
- name: GCP Authenticate
uses: GoogleCloudPlatform/github-actions/setup-gcloud#master
with:
version: "273.0.0"
service_account_key: ${{ secrets.GCP_SA_KEY }}
- name: Set GCP_PROJECT
env:
GCP_PROJECT: ${{ secrets.GCP_PROJECT }}
run: gcloud --quiet config set project ${GCP_PROJECT}
- name: Deploy to GAE
run: gcloud app deploy app.yaml
and github actions is throwing me the below error
Invalid workflow file: .github/workflows/main.yml#L10
You have an error in your yaml syntax on line 10
fyi, line #10 is - uses: actions/checkout#v2

Answer 1

The steps indentation level is incorrect, it should be inside deploy
name: "Deploy to GAE"
on:
push:
branches: [production]
jobs:
deploy:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout#v2
- name: Install Dependencies
run: composer install -n --prefer-dist
- name: Generate key
run: php artisan key:generate
- name: GCP Authenticate
uses: GoogleCloudPlatform/github-actions/setup-gcloud#master
with:
version: "273.0.0"
service_account_key: ${{ secrets.GCP_SA_KEY }}
- name: Set GCP_PROJECT
env:
GCP_PROJECT: ${{ secrets.GCP_PROJECT }}
run: gcloud --quiet config set project ${GCP_PROJECT}
- name: Deploy to GAE
run: gcloud app deploy app.yaml