PostgreSQL gem pg 无法安装

编程入门行业动态更新时间:2024-10-27 20:30:28

本文介绍了PostgreSQL gem pg 无法安装的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我的数据库是 PostgreSQL.我在 CENTOS 上......在安装 pg gem 时我收到以下错误.我也重新安装以清除我的 YAML 问题，但没有用，但这只是一个警告.我的主要问题是 pg gem 的安装:

My DB is PostgreSQL.I am on CENTOS.... While installing the pg gem I received the following error. I reinstalled to clear my YAML problem also, which didn't work, but it is just a warning. My main problem is the installation of the pg gem:

[root@vdimc04 ~]# gem install pg /usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>': It seems your ruby installation is missing psych (for YAML output). To eliminate this warning, please install libyaml and reinstall your ruby. Building native extensions. This could take a while... ERROR: Error installing pg: ERROR: Failed to build gem native extension. /usr/local/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. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/local/bin/ruby --with-pg --without-pg --with-pg-dir --without-pg-dir --with-pg-include --without-pg-include=${pg-dir}/include --with-pg-lib --without-pg-lib=${pg-dir}/lib --with-pg-config --without-pg-config --with-pg_config --without-pg_config Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/pg-0.14.1 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/pg-0.14.1/ext/gem_make.out

我也尝试过以下命令，但没有用:

I also tried with the following command, but to no use:

gem install pg -- --with-pg-config=/usr/pgsql-9.1/bin/pg_config

推荐答案

我在 Centos 上遇到了同样的错误.通过谷歌搜索，我找到了两个要使用的命令:

I got the same error on Centos. By googling I found two commands to use:

yum install postgresql-libs -- 它给我消息说，它已经安装了.

yum install postgresql-devel -- 它解决了我与 pg_config 相关的错误，用于安装 'pg' .gem.

yum install postgresql-libs -- It gave me message saying, its already installed.

yum install postgresql-devel -- It solved my error related to pg_config for installing the 'pg' .gem.

希望有帮助:)

apos 写道:在 Ubuntu 14.04 上安装: