在OSX 10.9上，gem install pg失败

Question

运行bundle install（或gem install pg）时出现以下错误我已经尝试修复xcode命令行工具

/Users/josh/.rvm/rubies/ruby-2.0.0-p353/bin/ruby extconf.rb
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
 --with-pg-config=/path/to/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** 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.

• Ruby 2.0.0
• Rails 4.0.2
• OSX 10.9.1

Answer 1

我今天遇到了同样的问题，这个答案为我解决了。

https://stackoverflow.com/a/19620569/91970

希望有所帮助。

摘要

brew更新

brew install postgresql

捆绑安装

Answer 2

作为参考，代码@marcamillion链接到：

brew update
brew install postgresql

bundle install

Answer 3

我遇到了同样的问题..我修改了Gemfile.lock并仅用pg（0.18.1）替换了pg（0.17.1）。

下载PostgreSQL 9.4并安装在系统

中

使用以下命令立即安装pg

gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config