How to change Node Version in Provision Step in Amplify Console

Question

I'm facing the problem that I cant build my Angular app through the AWS Amplify Console: "You are running version v8.12.0 of Node.js, which is not supported by Angular CLI 8.0+. The official Node.js version that is supported is 10.9 or greater. Please visit https://nodejs.org/en/ to find instructions on how to update Node.js."

Now I want to set the default node version of the docker container in the provision step to VERSION_NODE_10 which is already defined in the container.

# Framework Versions
ENV VERSION_NODE_8=8.12.0
ENV VERSION_NODE_6=6
ENV VERSION_NODE_10=10
ENV VERSION_NODE_DEFAULT=$VERSION_NODE_8 <-- Change this to $VERSION_NODE_10
ENV VERSION_RUBY_2_3=2.3.6
ENV VERSION_RUBY_2_4=2.4.3
ENV VERSION_RUBY_DEFAULT=$VERSION_RUBY_2_3
ENV VERSION_HUGO=0.51
ENV VERSION_YARN=1.13.0

amplify.yml:

version: 0.1
backend:
  phases:
    build:
      commands:
        - '# Execute Amplify CLI with the helper script'
        - amplifyPush --simple
frontend:
  phases:
    preBuild:
      commands:
        - npm ci
    build:
      commands:
        - node -v
        - npm run-script build
  artifacts:
    baseDirectory: dist/cr-client
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*

Does anyone know how to change the default?

Answer 1

AWS Amplify use nvm to handle node version. Try this:

version: 0.1
backend:
  phases:
    build:
      commands:
        - '# Execute Amplify CLI with the helper script'
        - amplifyPush --simple
frontend:
  phases:
    preBuild:
      commands:
        - nvm use $VERSION_NODE_10
        - npm ci
    build:
      commands:
        - nvm use $VERSION_NODE_10
        - node -v
        - npm run-script build
  artifacts:
    baseDirectory: dist/cr-client
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*