Heroku停留在Node v0.10.30上（但是package.json要求提供当前版本）

Question

Specify correct Node version..

"engines": {
    "node": "6.5.0",
    "npm": "3.10.3"
  },
  "scripts": {
    "postinstall": "node_modules/gulp/bin/gulp.js buildProd",
    "start": "node server.js -p $PORT"
  }

When deploying, the following log is shown..

-----> Installing binaries
remote:        engines.node (package.json):  6.5.0
remote:        engines.npm (package.json):   3.10.3

So Heroku appears to be picking up on the engine field of package.json and installing the correct version.

But when checking Node version on Heroku...

heroku run bash
node -v
v0.10.30

I get the wrong version

Answer 1

Are you using the Ruby Buildpack along with Node.js? Ruby requires node for certain parts of a build pipeline, and it installs 0.10.30 by default if node doesn't exist. To fix that, just put the Node.js Buildpack ahead of the Ruby buildpack, so node exists when the Ruby Buildpack runs.