我需要将rails_12factor gem安装到我的应用程序的gem文件中才能成功部署到Heroku。我能够安装gem（gem install rails_12factor），如果我运行gem list，它会显示它是在本地安装的。如何将特定的宝石安装到我的捆绑包中？我不确定我是否正确地问这个问题，但正如你在下面看到的那样它是按照我的说法在本地安装的。
4.0.0)
actionpack (4.0.1, 4.0.0)
activemodel (4.0.1, 4.0.0)
activerecord (4.0.1, 4.0.0)
activerecord-deprecated_finders (1.0.3)
activesupport (4.0.1, 4.0.0)
addressable (2.3.5)
arel (4.0.1)
atomic (1.1.14)
bigdecimal (1.2.3, 1.2.0)
builder (3.2.2, 3.1.4)
bundler (1.3.5)
coffee-rails (4.0.1)
coffee-script (2.2.0)
coffee-script-source (1.6.3)
erubis (2.7.0)
excon (0.30.0, 0.25.3)
execjs (2.0.2)
heroku-api (0.3.15)
hike (1.2.3)
i18n (0.6.5)
io-console (0.4.2)
jbuilder (1.5.2)
jquery-rails (3.0.4)
json (1.8.1, 1.7.7)
launchy (2.4.2, 2.4.1)
mail (2.5.4)
mime-types (2.0, 1.25.1, 1.25)
minitest (5.0.8, 4.7.5, 4.3.2)
multi_json (1.8.2)
mysql2 (0.3.14)
netrc (0.7.7)
pg (0.17.0 x86-mingw32)
polyglot (0.3.3)
psych (2.0.2, 2.0.0)
rack (1.5.2)
rack-test (0.6.2)
rails (4.0.1, 4.0.0)
**rails_12factor (0.0.2)
rails_serve_static_assets (0.0.1)
rails_stdout_logging (0.0.3)**
railties (4.0.1, 4.0.0)
rake (10.1.0, 0.9.6)
rdoc (4.0.1, 4.0.0, 3.12.2)
rest-client (1.6.7)
rubygems-update (2.1.11)
rubyzip (1.1.0)
sass (3.2.12)
sass-rails (4.0.1)
sdoc (0.3.20)
sprockets (2.10.1)
sprockets-rails (2.0.1)
sqlite3 (1.3.8 x86-mingw32)
test-unit (2.5.5, 2.0.0.0)
thor (0.18.1)
thread_safe (0.1.3)
tilt (1.4.1)
treetop (1.4.15)
turbolinks (1.3.1)
tzinfo (1.1.0, 0.3.38)
uglifier (2.3.1)
However it is not in my bundle below:
c:\dev\project2>bundle
Using rake (10.1.0)
Using i18n (0.6.5)
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)
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)
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)
Using activemodel (4.0.0)
Using activerecord-deprecated_finders (1.0.3)
Using arel (4.0.1)
Using activerecord (4.0.0)
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)
Using coffee-rails (4.0.1)
Using hike (1.2.3)
Using jbuilder (1.5.2)
Using jquery-rails (3.0.4)
Using json (1.8.1)
Using mysql2 (0.3.14)
Using bundler (1.3.5)
Using tilt (1.4.1)
Using sprockets (2.10.1)
Using sprockets-rails (2.0.1)
Using rails (4.0.0)
Using rdoc (3.12.2)
Using sass (3.2.12)
Using sass-rails (4.0.1)
Using sdoc (0.3.20)
Using turbolinks (1.3.1)
Using uglifier (2.3.1)
Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed.
我能够在此路径中找到rails_12factor-0.02.gemspec C：\ Users \ vern.gem \ specs \ rubygems.org％443 \ quick \ Marshal.4.8
我注意到它是一个gem spec文件但是我不知道如何将它作为我项目的gem包的一部分安装
以下是我推送到heroku时的内容：
c:\dev\project2>git push heroku master
Enter passphrase for key '/c/Users/vern/.ssh/id_rsa':
Counting objects: 87, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (76/76), done.
Writing objects: 100% (87/87), 16.24 KiB | 0 bytes/s, done.
Total 87 (delta 20), 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
New app detected loading default bundler cache
Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bund
Fetching gem metadata from https://rubygems.org/...........
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Using rake (10.1.0)
Using i18n (0.6.5)
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)
Installing activesupport (4.0.0)
Using builder (3.1.4)
Using erubis (2.7.0)
Using rack (1.5.2)
Using rack-test (0.6.2)
Installing actionpack (4.0.0)
Installing mime-types (1.25.1)
Using polyglot (0.3.3)
Using treetop (1.4.15)
Using mail (2.5.4)
Installing actionmailer (4.0.0)
Installing activemodel (4.0.0)
Using activerecord-deprecated_finders (1.0.3)
Using arel (4.0.1)
Installing activerecord (4.0.0)
Using bundler (1.3.2)
Using coffee-script-source (1.6.3)
Using execjs (2.0.2)
Using coffee-script (2.2.0)
Using thor (0.18.1)
Installing railties (4.0.0)
Using coffee-rails (4.0.1)
Using hike (1.2.3)
Using jbuilder (1.5.2)
Using jquery-rails (3.0.4)
Using json (1.8.1)
Installing mysql2 (0.3.14)
Using tilt (1.4.1)
Installing sprockets (2.10.1)
Using sprockets-rails (2.0.1)
Installing rails (4.0.0)
Using rdoc (3.12.2)
Using sass (3.2.12)
Using sass-rails (4.0.1)
Using sdoc (0.3.20)
Using turbolinks (1.3.1)
Using uglifier (2.3.1)
Your bundle is complete! It was installed into ./vendor/bundle
Bundle completed (17.19s)
Cleaning up the bundler cache.
Removing sass-rails (3.2.6)
Removing kgio (2.8.1)
Removing tzinfo (0.3.37)
Removing jbuilder (1.5.1)
Removing raindrops (0.12.0)
Removing activerecord (3.2.14)
Removing builder (3.0.4)
Removing rails (3.2.14)
Removing activesupport (3.2.14)
Removing actionmailer (3.2.14)
Removing bcrypt-ruby (3.0.1)
Removing unicorn (4.6.3)
Removing mime-types (1.25)
Removing rails_stdout_logging (0.0.2)
Removing rails_stdout_logging (0.0.3)
Removing sprockets (2.2.2)
Removing execjs (2.0.1)
Removing json (1.8.0)
Removing rack-ssl (1.3.3)
Removing rack-cache (1.2)
Removing puma (2.6.0)
Removing journey (1.0.4)
Removing activesupport (4.0.1)
Removing activemodel (4.0.1)
Removing activemodel (3.2.14)
Removing sass (3.2.10)
Removing nokogiri (1.6.0)
Removing multi_json (1.8.0)
Removing actionpack (4.0.1)
Removing uglifier (2.2.1)
Removing railties (3.2.14)
Removing rails (4.0.1)
Removing arel (3.0.2)
Removing rails_serve_static_assets (0.0.1)
Removing rails_12factor (0.0.2)
Removing activeresource (3.2.14)
Removing bcrypt-ruby (3.1.2)
Removing actionmailer (4.0.1)
Removing sprockets (2.10.0)
Removing coffee-rails (3.2.2)
Removing mini_portile (0.5.1)
Removing activerecord (4.0.1)
Removing pg (0.17.0)
Removing rack (1.4.5)
Removing actionpack (3.2.14)
Removing railties (4.0.1)
-----> Writing config/database.yml to read from DATABASE_URL
-----> Preparing app for Rails asset pipeline
Running: rake assets:precompile
I, [2013-11-29T23:11:27.829492 #1297] INFO -- : Writing /tmp/build_55e1f130-6b0f-4106-871a-45
lic/assets/application-fee71c53d09a01d2ff7501990d2c3307.js
I, [2013-11-29T23:11:27.856160 #1297] INFO -- : Writing /tmp/build_55e1f130-6b0f-4106-871a-45
lic/assets/application-96a552b03ca0e7ebcbfc44b89ca097a6.css
Asset precompilation completed (7.77s)
Cleaning assets
-----> WARNINGS:
Include 'rails_12factor' gem to enable all platform features
See https://devcenter.heroku.com/articles/rails-integration-gems for more information.
Removing `Gemfile.lock` because it was generated on Windows.
Bundler will do a full resolve so native gems are handled properly.
This may result in unexpected gem versions being used in your app.
-----> Discovering process types
Procfile declares types -> (none)
Default types for Ruby -> console, rake, web, worker
-----> Compiled slug size: 21.0MB
-----> Launching... done, v5
http://fast-lake-6950.herokuapp.com deployed to Heroku
To git@heroku.com:fast-lake-6950.git
* [new branch] master -> master
c:\dev\project2>
你可以看到它删除了rails_12因子gem，所以我不太清楚该怎么做。我也收到了警告
警告： 包含'rails_12factor'gem以启用所有平台功能 有关详细信息，请参阅https://devcenter.heroku.com/articles/rails-integration-gems。也许有一个解决方案，我没有意识到任何帮助将不胜感激。感谢
Ruby版本2.0.0 Rails 4.0.0 Windows 7 64位
答案 0 :(得分：0)
尝试仅在生产中放置rails_12factor gem
gem 'rails_12factor', group: :production
因此，这不会在您的开发环境中安装gem，但会在您的生产环境中执行（当您推送到heroku时）。
希望这有帮助