message: run prepare script in travisCI
diff: @@ -3,4 +3,4 @@ node_js:
  - "8"
  script:
  - - cd lib && npm install --ignore-scripts && npm test && npm run lint && npm run build
  \ No newline at end of file
  + - cd lib && npm install --ignore-scripts && npm run prepare
  \ No newline at end of file
  