在捆绑之前确保`gem install pg -v'0.18.4'成功

Question

执行时出现以下错误bundle update:

要查看此扩展无法编译的原因,请查看mkmf.log,可
在此处找到:

/Users/jack/.rvm/gems/ruby-2.3.3/extensions/x86_64-darwin-16/2.3.0/pg-0.18.4/mkmf.log

extconf失败,退出代码1

Gem文件将保留在
/Users/jack/.rvm/gems/ruby-2.3.3/gems/pg-0.18.4中进行检查.结果记录到
/Users/jack/.rvm/gems/ruby-2.3.3/extensions/x86_64-darwin-16/2.3.0/pg-0.18.4/gem_make.out

安装pg(0.18.4)时发生错误,Bundler无法继续.在捆绑之前
确保gem install pg -v '0.18.4'成功.

我不知道为什么我会遇到这个问题.我执行gem install pg -v '0.18.4':

要查看此扩展无法编译的原因,请查看mkmf.log,可在此处找到:

/Users/jack/.rvm/gems/ruby-2.3.3/extensions/x86_64-darwin-16/2.3.0/pg-0.18.4/mkmf.log

extconf失败,退出代码1

Gem文件将保留在/Users/jack/.rvm/gems/ruby-2.3.3/gems/pg-0.18.4中进行检查.结果记录到/Users/jack/.rvm/gems/ruby-2.3.3/extensions/x86_64-darwin-16/2.3.0/pg-0.18.4/gem_make.out

我的Gemfile是这样的:

source 'https://gems.ruby-china.org'
gem 'rails', '5.0.0.1'
gem 'puma', '3.4.0'
gem 'sass-rails', '5.0.6'
gem 'uglifier', '3.0.0'
gem 'coffee-rails', '4.2.1'
gem 'jquery-rails', '4.1.1'
gem 'turbolinks', '5.0.1'
gem 'jbuilder', '2.4.1'

group :development, :test do
gem 'sqlite3', '1.3.11'
gem 'byebug', '9.0.0', platform: :mri
end

group :development do
  gem 'web-console', '3.1.1'
  gem 'listen', '3.0.8'
  gem 'spring', '1.7.2'
  gem 'spring-watcher-listen', '2.0.0'

end
group :production do gem 'pg', '0.18.4'
end
    # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

---

编辑-1

我的操作系统是macOS Sierra

Answer 1

我遇到了类似的问题,这对我有用:

(注意:首先确保你已经安装了XCode和自制软件)

1. brew install postgresql

2. gem uninstall pg - 这可能不会返回任何东西,没关系.

3. 然后在你的应用程序目录中,bundle install或者gem install pg