CircleCI在YAML中失败

Question

我直接从他们的示例中复制了部署部分：

machine:
  environment:
    PATH: ${PATH}:${HOME}/${CIRCLE_PROJECT_REPONAME}/node_modules/.bin
    NODE_ENV: test
    TZ: Europe/Paris
  node:
    version: v0.12.7

dependencies:
  cache_directories:
    - node_modules
    - app/js/lib
  override:
    - npm prune && npm install

deployment:
  production:
    branch: master
    commands:
      - ./deploy_prod.sh
  staging:
    branch: staging
    commands:
      - ./deploy_staging.sh

然而我明白了：

想法？