我正在努力更改 Heroku 上的 Ruby 版本。
我使用 Ruby 2.0.0 和 Rails 4。
我的 Gemfile 有：
source 'https://rubygems.org'
ruby '2.0.0'
...
Heroku 中的路径指向：
$ heroku config -s | grep PATH
PATH=bin:vendor/bundle/ruby/1.9.1/bin:/usr/local/bin:/usr/bin:/bin
当我推送我的应用程序时，我可以看到：
Fetching repository, done.
Counting objects: 7, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 431 bytes | 0 bytes/s, done.
Total 4 (delta 3), reused 0 (delta 0)
-----> Ruby app detected
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.0.0
-----> Installing dependencies using Bundler version 1.3.2
Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin --deployment
Using rake (10.1.1)
Using i18n (0.6.9)
Using minitest (4.7.5)
Using multi_json (1.8.2)
Using atomic (1.1.14)
Using thread_safe (0.1.3)
Using tzinfo (0.3.38)
Using activesupport (4.0.0.rc1)
Using builder (3.1.4)
Using erubis (2.7.0)
Using rack (1.5.2)
Using rack-test (0.6.2)
Using actionpack (4.0.0.rc1)
Using mime-types (1.25.1)
Using polyglot (0.3.3)
Using treetop (1.4.15)
Using mail (2.5.4)
Using actionmailer (4.0.0.rc1)
Using activemodel (4.0.0.rc1)
Using activerecord-deprecated_finders (1.0.3)
Using arel (4.0.1)
Using activerecord (4.0.0.rc1)
Using addressable (2.3.5)
Using bcrypt-ruby (3.1.2)
Using coffee-script-source (1.6.3)
Using execjs (2.0.2)
Using coffee-script (2.2.0)
Using thor (0.18.1)
Using railties (4.0.0.rc1)
Using coffee-rails (4.0.0)
Using orm_adapter (0.5.0)
Using warden (1.2.3)
Using devise (3.0.4)
Using excon (0.25.3)
Using geocoder (1.1.9)
Using gmapsjs (0.2.30.1)
Using heroku-api (0.3.15)
Using launchy (2.4.2)
Using netrc (0.7.7)
Using rest-client (1.6.7)
Using rubyzip (1.1.0)
Using heroku (3.2.1)
Using hike (1.2.3)
Using jbuilder (1.0.2)
Using jquery-rails (3.0.4)
Using jquery-ui-rails (4.1.1)
Using json (1.8.1)
Using libv8 (3.16.14.3)
Using nifty-generators (0.4.6)
Using pg (0.17.1)
Using bundler (1.3.2)
Using tilt (1.4.1)
Using sprockets (2.10.1)
Using sprockets-rails (2.0.1)
Using rails (4.0.0.rc1)
Using rails_serve_static_assets (0.0.2)
Using rails_stdout_logging (0.0.3)
Using rails_12factor (0.0.2)
Using rdoc (3.12.2)
Using ref (1.0.5)
Using sass (3.2.13)
Using sass-rails (4.0.0)
Using sdoc (0.3.20)
Using therubyracer (0.12.0)
Using turbolinks (2.1.0)
Using uglifier (2.4.0)
Using will_paginate (3.0.5)
Your bundle is complete! It was installed into ./vendor/bundle
Bundle completed (0.46s)
Cleaning up the bundler cache.
Removing rails_log_stdout (01b5bcc572e3)
Removing rails3_serve_static_assets (84910ceb4ca2)
-----> Writing config/database.yml to read from DATABASE_URL
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
Asset precompilation completed (3.59s)
Cleaning assets
-----> Discovering process types
Procfile declares types -> (none)
Default types for Ruby -> console, rake, web, worker
-----> Compressing... done, 33.3MB
-----> Launching... done, v17
http://rocky-shore-1207.herokuapp.com deployed to Heroku
To [email protected] /cdn-cgi/l/email-protection:rocky-shore-1207.git
05cf948..73b6cfa master -> master
既然 Heroku 说过Using Ruby version: ruby-2.0.0，它检测到我的 Ruby 版本。
然而，当我跑步时$ heroku run rake db:migrate or heroku run 'ruby -v'它返回：
Your Ruby version is 1.9.2, but your Gemfile specified 2.0.0
如何在 Heroku 上将 Ruby 版本更改为 2.0.0？
结论：
我注意到我的 Rails 应用程序有 .bash_profile 文件，但它的路径错误。该路径扰乱了我的 ruby 版本的 heroku 路径。
谢谢大家的帮助:)
