Postgres的宝石没有加载在初始Rails 4应用程序部署

我得到了我的Rails 4应用程序运行在我的本地机器上，并在此刻heroku。现在我试图建立一个ubutunu 14服务器。对于部署，我正在使用capistrano，并且已经设置了本地计算机和服务器之间的连接。目前，我试图做最初的部署使用此命令：Postgres的宝石没有加载在初始Rails 4应用程序部署

cap production deploy:initial

我获得以下在某一点错误：

Running ~/.rvm/bin/rvm default do bundle exec rake assets:precompile on MYIP 
DEBUG Command: cd /home/deploy/apps/savoir/releases/20160209113448 && (export RAILS_ENV="production" ; ~/.rvm/bin/rvm default do bundle exec rake assets:precompile) 
DEBUG  rake aborted! 
DEBUG  Gem::LoadError: Specified 'postgresql' for database adapter, but the gem is not loaded. Add `gem 'pg'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord).

我的Gemfile看起来是这样的：

source 'http://rubygems.org' 

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 
gem 'rails', '4.1.8' 
# Use sqlite3 as the database for Active Record 
# gem 'sqlite3' 
# Use SCSS for stylesheets 
gem 'sass-rails', '~> 5.0.1' 
# 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' 
# 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 

# 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] 

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem 
gem 'tzinfo-data', platforms: [:mingw, :mswin] 

gem 'bootstrap-sass', '~> 3.3.5.1' 
gem 'autoprefixer-rails' 
gem 'bootstrap-sass-extras' 
gem 'bootstrap-daterangepicker-rails' 
gem 'bootstrap-datepicker-rails' 

gem 'simple_form' 
gem 'nested_form' 

gem 'ckeditor' 
gem 'coffee-script-source', '1.8.0' 
gem 'carrierwave', github:'carrierwaveuploader/carrierwave' 
gem 'carrierwave-crop' 
gem 'rmagick' 
gem 'mini_magick' 

gem 'momentjs-rails' 
gem 'gon' 

gem 'jquery-ui-rails' 
gem 'jquery-fileupload-rails' 
gem 'jquery-turbolinks' 
gem 'jquery-validation-rails' 

gem 'devise' 

gem 'ransack' 
gem 'will_paginate' 

gem 'rails_12factor' 
gem 'pg', '~> 0.18.3' 

gem 'geocoder' 
gem 'gmaps4rails' 
gem 'underscore-rails' 

group :development do 
    gem 'capistrano',   require: false 
    gem 'capistrano-rvm',  require: false 
    gem 'capistrano-rails', require: false 
    gem 'capistrano-bundler', require: false 
    gem 'capistrano3-puma', require: false 
end 

gem 'puma'

而且我的database.yml：

development: 
    adapter: postgresql 
    database: savoir_development 
    pool: 5 
    username: postgres 
    password: root 

test: 
    adapter: postgresql 
    database: savoir_test 
    pool: 5 
    timeout: 5000 
    username: postgres 
    password: root 

production: 
    adapter: postgresql 
    database: deploy 
    pool: 5 
    timeout: 5000 
    username: USER 
    password: PASSWORD

所以据我所见，gemfile和database.yml应该没问题。任何人都可以找到我犯的错误吗？我发现一些其他线程可以解决这个问题，但他们对我的案例没有帮助。

来源

2016-02-09 Syk

你已经在gem文件中有sqlite3和pg，我想你需要在gemfile，gem'pg'，group ::：production中为生产环境添加pg gem，然后对于sqlite 3，gem'sqlite3' ，组：：[：development，：test]，或者如果你没有使用，就完全删除sqlite3。 –

感谢您的回答。尽管sqlite3 gem被注释掉了。 – Syk

它在gemlock文件中？ –

好的，我找到了解决方案。

因为我是用我的本地机器上的窗户，栏杆用这个版本的PG：

//Gemlock.lock 
pg (0.18.4-x86-mingw32)

改变它

//Gemlock.lock 
pg (0.18.4)

，并推到GIT解决我的问题。

来源

2016-02-15 13:38:11 Syk

Postgres的宝石没有加载在初始Rails 4应用程序部署

回答

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