ruby-on-rails - Heroku 推送错误 "Detected sqlite3 gem which is not supported on Heroku."

Question

我正在尝试将我的应用程序推送到 Heroku。我在开发中使用了 sqlite gem，在生产中使用了 pg gem，但我仍然得到:

Detected sqlite3 gem which is not supported on Heroku.

错误。

remote:        An error occurred while installing sqlite3 (1.3.10), and Bundler cannot
remote:        continue.
remote:        Make sure that `gem install sqlite3 -v '1.3.10'` succeeds before bundling.
remote:  !
remote:  !     Failed to install gems via Bundler.
remote:  !     
remote:  !     Detected sqlite3 gem which is not supported on Heroku.
remote:  !     https://devcenter.heroku.com/articles/sqlite3
remote:  !
remote: 
remote:  !     Push rejected, failed to compile Ruby app
remote: 
remote: Verifying deploy...
remote: 
remote: !       Push rejected to fierce-thicket-3015.
remote: 

这是我的 Gemfile:

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.7'
# Use sqlite3 as the database for Active Record
group :devlopment, :test do
  gem 'sqlite3'
end

group :production do
  gem 'pg',             '0.17.1'
  gem 'rails_12factor', '0.0.2'
end

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
gem 'bootstrap-sass'
gem 'autoprefixer-rails'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer',  platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
gem 'jquery-ui-rails'
gem 'jcrop-rails-v2'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0',          group: :doc

# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring',        group: :development

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

gem 'devise'
gem 'devise_invitable'
gem "mini_magick"
gem 'carrierwave'
gem 'will_paginate-bootstrap'
gem 'acts_as_commentable'
gem 'acts_as_votable'
gem 'acts-as-taggable-on'

group :development do
  gem "better_errors"
  gem "binding_of_caller"
  gem "letter_opener"
end

这是我的 Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    actionmailer (4.1.7)
      actionpack (= 4.1.7)
      actionview (= 4.1.7)
      mail (~> 2.5, >= 2.5.4)
    actionpack (4.1.7)
      actionview (= 4.1.7)
      activesupport (= 4.1.7)
      rack (~> 1.5.2)
      rack-test (~> 0.6.2)
    actionview (4.1.7)
      activesupport (= 4.1.7)
      builder (~> 3.1)
      erubis (~> 2.7.0)
    activemodel (4.1.7)
      activesupport (= 4.1.7)
      builder (~> 3.1)
    activerecord (4.1.7)
      activemodel (= 4.1.7)
      activesupport (= 4.1.7)
      arel (~> 5.0.0)
    activesupport (4.1.7)
      i18n (~> 0.6, >= 0.6.9)
      json (~> 1.7, >= 1.7.7)
      minitest (~> 5.1)
      thread_safe (~> 0.1)
      tzinfo (~> 1.1)
    acts-as-taggable-on (3.4.3)
      activerecord (>= 3.2, < 5)
    acts_as_commentable (4.0.2)
    acts_as_votable (0.10.0)
    addressable (2.3.6)
    arel (5.0.1.20140414130214)
    autoprefixer-rails (5.1.1)
      execjs
      json
    bcrypt (3.1.10)
    better_errors (2.1.1)
      coderay (>= 1.0.0)
      erubis (>= 2.6.6)
      rack (>= 0.9.0)
    binding_of_caller (0.7.2)
      debug_inspector (>= 0.0.1)
    bootstrap-sass (3.3.3)
      autoprefixer-rails (>= 5.0.0.1)
      sass (>= 3.2.19)
    builder (3.2.2)
    carrierwave (0.10.0)
      activemodel (>= 3.2.0)
      activesupport (>= 3.2.0)
      json (>= 1.7)
      mime-types (>= 1.16)
    coderay (1.1.0)
    coffee-rails (4.0.1)
      coffee-script (>= 2.2.0)
      railties (>= 4.0.0, < 5.0)
    coffee-script (2.3.0)
      coffee-script-source
      execjs
    coffee-script-source (1.9.0)
    debug_inspector (0.0.2)
    devise (3.4.1)
      bcrypt (~> 3.0)
      orm_adapter (~> 0.1)
      railties (>= 3.2.6, < 5)
      responders
      thread_safe (~> 0.1)
      warden (~> 1.2.3)
    devise_invitable (1.4.0)
      actionmailer (>= 3.2.6, < 5)
      devise (>= 3.2.0)
    erubis (2.7.0)
    execjs (2.2.2)
    hike (1.2.3)
    i18n (0.7.0)
    jbuilder (2.2.6)
      activesupport (>= 3.0.0, < 5)
      multi_json (~> 1.2)
    jcrop-rails-v2 (0.9.12.3)
    jquery-rails (3.1.2)
      railties (>= 3.0, < 5.0)
      thor (>= 0.14, < 2.0)
    jquery-ui-rails (5.0.3)
      railties (>= 3.2.16)
    json (1.8.2)
    launchy (2.4.3)
      addressable (~> 2.3)
    letter_opener (1.3.0)
      launchy (~> 2.2)
    mail (2.6.3)
      mime-types (>= 1.16, < 3)
    mime-types (2.4.3)
    mini_magick (4.0.3)
    minitest (5.5.1)
    multi_json (1.10.1)
    orm_adapter (0.5.0)
    pg (0.17.1)
    rack (1.5.2)
    rack-test (0.6.3)
      rack (>= 1.0)
    rails (4.1.7)
      actionmailer (= 4.1.7)
      actionpack (= 4.1.7)
      actionview (= 4.1.7)
      activemodel (= 4.1.7)
      activerecord (= 4.1.7)
      activesupport (= 4.1.7)
      bundler (>= 1.3.0, < 2.0)
      railties (= 4.1.7)
      sprockets-rails (~> 2.0)
    rails_12factor (0.0.2)
      rails_serve_static_assets
      rails_stdout_logging
    rails_serve_static_assets (0.0.4)
    rails_stdout_logging (0.0.3)
    railties (4.1.7)
      actionpack (= 4.1.7)
      activesupport (= 4.1.7)
      rake (>= 0.8.7)
      thor (>= 0.18.1, < 2.0)
    rake (10.4.2)
    rdoc (4.2.0)
      json (~> 1.4)
    responders (1.1.2)
      railties (>= 3.2, < 4.2)
    sass (3.2.19)
    sass-rails (4.0.5)
      railties (>= 4.0.0, < 5.0)
      sass (~> 3.2.2)
      sprockets (~> 2.8, < 3.0)
      sprockets-rails (~> 2.0)
    sdoc (0.4.1)
      json (~> 1.7, >= 1.7.7)
      rdoc (~> 4.0)
    spring (1.2.0)
    sprockets (2.12.3)
      hike (~> 1.2)
      multi_json (~> 1.0)
      rack (~> 1.0)
      tilt (~> 1.1, != 1.3.0)
    sprockets-rails (2.2.4)
      actionpack (>= 3.0)
      activesupport (>= 3.0)
      sprockets (>= 2.8, < 4.0)
    sqlite3 (1.3.10)
    thor (0.19.1)
    thread_safe (0.3.4)
    tilt (1.4.1)
    turbolinks (2.5.3)
      coffee-rails
    tzinfo (1.2.2)
      thread_safe (~> 0.1)
    uglifier (2.7.0)
      execjs (>= 0.3.0)
      json (>= 1.8.0)
    warden (1.2.3)
      rack (>= 1.0)
    will_paginate (3.0.7)
    will_paginate-bootstrap (1.0.1)
      will_paginate (>= 3.0.3)

PLATFORMS
  ruby

DEPENDENCIES
  acts-as-taggable-on
  acts_as_commentable
  acts_as_votable
  autoprefixer-rails
  better_errors
  binding_of_caller
  bootstrap-sass
  carrierwave
  coffee-rails (~> 4.0.0)
  devise
  devise_invitable
  jbuilder (~> 2.0)
  jcrop-rails-v2
  jquery-rails
  jquery-ui-rails
  letter_opener
  mini_magick
  pg (= 0.17.1)
  rails (= 4.1.7)
  rails_12factor (= 0.0.2)
  sass-rails (~> 4.0.3)
  sdoc (~> 0.4.0)
  spring
  sqlite3
  turbolinks
  uglifier (>= 1.3.0)
  will_paginate-bootstrap

我是 Rails 的新手，我不知道这里出了什么问题，因为 Sqlite 只用于开发而不是生产。如果有人可以帮助我，我将非常感激，我已经尝试搜索但无法找出造成这种情况的原因。谢谢!

Answer 1

Heroku 忽略开发 gem ；但是，您拼错了 development，因此 Heroku 会尝试安装 gem。

group :devlopment, :test do
  gem 'sqlite3'
end

将其更改为:development