如何在Ubuntu上安装PostgreSQL的pg gem ?

我正在尝试为Ruby安装PostgreSQL的pg gem。

我发出了以下命令:

gem install pg

我使用RVM安装Ruby 1.9.2。

上面的命令显示了以下错误。

错误是:

Building native extensions.  This could take a while...

ERROR:  Error installing pg:

ERROR: Failed to build gem native extension.

/home/User/.rvm/rubies/ruby-1.9.2-preview3/bin/ruby extconf.rb

checking for pg_config... yes
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)

*** 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=/home/User/.rvm/rubies/ruby-1.9.2-preview3/bin/ruby
 --with-pg
 --without-pg
 --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
 --enable-static-build
 --disable-static-build
 --with-pqlib
 --without-pqlib
 --with-libpqlib
 --without-libpqlib
 --with-ms/libpqlib
 --without-ms/libpqlib

Gem files will remain installed in /home/user/.rvm/gems/ruby-1.9.2-preview3/gems/pg-0.9.0 for inspection.

Results logged to /home/user/.rvm/gems/ruby-1.9.2-preview3/gems/pg-0.9.0/ext/gem_make.out

我不知道是什么错误…

当前回答

需要添加包

sudo apt-get install libpq-dev

在RoR中安装pg gem

2016-01-08 08:51:39

其他回答

这解决了我在Ubuntu 12.04上的问题，之前这里的每个建议都失败了。

rvmsudo gem install pg -v '0.12.2' -- --with-pg-lib=/usr/include/postgresql

2012-11-07 21:55:34

ubuntu用户的简单解决方案…

首先卸载所有postgres包，然后运行这些命令…

sudo apt-get install postgresql
sudo apt-get install postgresql-client libpq5 libpq-dev

# for rvm (single user)
mv ~/.rvm/usr/lib ~/.rvm/usr/lib_rvm 

# for rvm (multi-user)
mv /usr/local/rvm/usr/lib /usr/local/rvm/usr/lib_rvm

gem install pg  --   --with-pg-lib=/usr/lib

然后运行'bundle install'。一切都会好的。祝你有愉快的一天!

2014-05-23 19:19:21

在Ubuntu中，这适用于我，我希望能帮助到你:

sudo apt-get install libpq-dev

and

gem install pg  --   --with-pg-lib=/usr/lib

2018-03-06 15:49:31

试试这个

sudo apt-get install postgresql postgresql-contrib libpq-dev

为了安装客户端，首先应该安装PG数据库服务器。然后，安装客户端。

请参阅这篇博客文章，了解如何第一次为Ruby on Rails开发设置PostGresSQL。

2017-07-03 03:47:25

安装libpq-dev不适合我。我还需要安装build-essential

sudo apt-get install libpq-dev build-essential

2012-09-04 18:40:37

如何在Ubuntu上安装PostgreSQL的pg gem ?

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