I built a simple ReactJs app and tried using Google Cloud Build to deploy it as soon as I push a new commit to the master branch on Github. For that I added an "On push to master" trigger and followed every step from here to configure my Google Cloud and Local Project. In the end I created a cloudbuild.yaml file with the following content:
After a new commit and push the cloud build logs a correct npm install and npm run build, but the firebase stops at the following step.
I didn't understand which file/directory is missing, nor how to fix it. Could anyone help me a little? Thanks in advance.

