狂欢：heroku部署错误

Question

我一直在追随：

remote:        Gem::InstallError: spree_core requires Ruby version >= 2.1.0.
remote:        An error occurred while installing spree_core (3.0.4), and Bundler cannot
remote:        continue.
remote:        Make sure that `gem install spree_core -v '3.0.4'` succeeds before bundling.

当我跑

时

gem install spree_code -v '3.0.4' 

它是成功的，之后当我再次运行git push heroku master时，我得到完全相同的错误。

rbenv versions 

显示以下内容：

2.2.2 (set by /Users/Martijn/.rbenv/version)

Answer 1

Heroku需要Gemfile中定义的ruby版本，例如： ruby "2.2.1"。更多信息：https://devcenter.heroku.com/articles/ruby-versions。