postgresql - Heroku 和 Gemfile 管理

Question

我在让应用程序在 heroku 上运行时遇到问题。我收到的错误消息是:

"Installing pg (0.14.0) with native extensions /Users/blanecordes/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/rubygems/installer.rb:483:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

/Users/blanecordes/.rvm/rubies/ruby-1.9.2-p0/bin/ruby extconf.rb --with-pg-config=/users/blanecordes/postgresql/bin/pg_config Using config values from /users/blanecordes/postgresql/bin/pg_config sh: /users/blanecordes/postgresql/bin/pg_config: No such file or directory sh: /users/blanecordes/postgresql/bin/pg_config: No such file or directory checking for libpq-fe.h... * extconf.rb failed * Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options."

我的 gemfile 是:

source 'https://rubygems.org'

gem 'rails', '3.2.3'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem 'sqlite3'
gem 'pg'
gem 'nokogiri'
gem 'pry'

group :test, :development do
 gem 'sqlite3'
 gem "rspec-rails", "~> 2.0"
 end

# Gems used only for assets and not required
# in production environments by default.
group :assets do
 gem 'sass-rails',   '~> 3.2.3'
 gem 'coffee-rails', '~> 3.2.1'

# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platform => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'

# To use Jbuilder templates for JSON
# gem 'jbuilder'

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

# Deploy with Capistrano
# gem 'capistrano'

# To use debugger
# gem 'ruby-debug19', :require => 'ruby-debug'

Answer 1

您的 gemfile 中有 sqlite3 和 pg。它们不相容，因为它们做同样的事情。最好的办法是install postgresql如果您打算继续使用 heroku，则在您的本地计算机上。然后从您的 gemfile 中删除 sqlite3(它在两个地方)。

如果你想在本地机器上坚持使用 sqlite3，请将 pg 包装在生产 block 中，并且在测试、开发 block 中只包含 sqlite3。

# gem 'sqlite3'
# gem 'pg'

group :production do
  gem 'pg'
end


group :test, :development do
  gem 'sqlite3'
  gem "rspec-rails", "~> 2.0"
end