【问题标题】:Installing pg -v 0.17.1安装 pg -v 0.17.1
【发布时间】:2013-12-19 08:59:18
【问题描述】:

我正在使用/我想使用 Postgresql 作为数据库,但是当我输入“bundle install”或“bundle update”时,我收到了这个错误,我该怎么做才能解决这个问题? :)

    Installing pg (0.17.1) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/local/rvm/rubies/ruby-1.9.3-p392/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/rvm/rubies/ruby-1.9.3-p392/bin/ruby
    --with-pg
    --without-pg
    --with-pg-config
    --without-pg-config
    --with-pg_config
    --without-pg_config
    --with-pg-dir
    --without-pg-dir
    --with-pg-include
    --without-pg-include=${pg-dir}/include
    --with-pg-lib
    --without-pg-lib=${pg-dir}/lib


Gem files will remain installed in /Users/rsvmrk/.bundler/tmp/22196/gems/pg-0.17.1 for inspection.
Results logged to /Users/rsvmrk/.bundler/tmp/22196/gems/pg-0.17.1/ext/gem_make.out
An error occurred while installing pg (0.17.1), and Bundler cannot continue.
Make sure that `gem install pg -v '0.17.1'` succeeds before bundling.

有什么建议吗?

【问题讨论】:

  • 您是否按照那里的建议安装了 PostgreSQL 8.4.x 或更高版本(带有头文件、-dev 包等):github.com/ged/ruby-pg

标签: ruby-on-rails ruby postgresql pg bundle-install


【解决方案1】:

看起来您缺少必备库。

sudo apt-get install libpq-dev postgresql-devel

然后安装pg

gem install pg

【讨论】:

  • 我尝试过使用该命令,但终端显示:“sudo: apt-get: command not found”
  • apt-get 没有安装在你的系统上,我希望 wget 安装在你的系统上。运行“wget mirror.pnl.gov/ubuntu//pool/main/a/apt/…”然后“sudo dpkg -i apt_0.9.7.7ubuntu4_amd64.deb”
  • 期待你有 64 位系统。
  • 嗯...什么都没有发生。仍然“找不到命令”。有没有我想安装这些命令的特殊地方?
【解决方案2】:

对于 OS X 上的用户,我建议使用 home-brew 安装:

brew install postgresql

更多信息at Homebrew's site,如果您还不是用户,包括如何设置。

【讨论】:

    【解决方案3】:

    为了与 PostgreSQL 数据库后端通信,您需要 libpq-dev 包。

    sudo apt-get install libpq-dev 
    

    然后继续安装包

    gem install pg
    

    【讨论】:

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