安装pg gem时找不到'libpq-fe.h头文件

我使用的是Ruby on Rails 3.1预版本。我喜欢使用PostgreSQL，但问题是安装pg gem。它给了我以下错误:

$ gem install pg
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
    ERROR: Failed to build gem native extension.

        /home/u/.rvm/rubies/ruby-1.9.2-p0/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=/home/u/.rvm/rubies/ruby-1.9.2-p0/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 /home/u/.rvm/gems/ruby-1.9.2-p0/gems/pg-0.11.0 for inspection.
    Results logged to /home/u/.rvm/gems/ruby-1.9.2-p0/gems/pg-0.11.0/ext/gem_make.out

我怎么解决这个问题?

当前回答

在Mac上，我用下面的代码解决了这个问题:

gem install pg -v '0.18.4' -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config

2016-02-04 21:00:51

其他回答

我也尝试过做gem安装libpq-dev，但我收到了这个错误:

Can't find the 'libpq-fe.h header
*** extconf.rb failed ***

然而，我发现使用sudo apt-get(我尽量避免在Ruby on Rails中使用)安装是有效的，即。

sudo apt-get install libpq-dev
# or
apt-get install postgres-server-dev-{pg.version}
# for postgresql 9.4 on Ubuntu 14.04

然后我就能做了

gem install pg

没有问题。

2012-01-16 23:34:10

郑重声明:

Ruby on Rails 4应用程序在OS X与PostgresApp(在这种情况下需要0.17.1版本-有点老项目):

gem install pg -v '0.17.1' -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.3/bin/pg_config

2015-10-19 16:53:13

我已经尝试了所有的解决方案，但只在命令下工作

pip install psycopg2-binary

2020-06-18 04:29:45

在MacOS M1上解决:

brew install libpq

然后我输入我的路径

echo 'export PATH="/opt/homebrew/opt/libpq/bin:$PATH"' >> ~/.zshrc

And:

gem install pg

2022-11-05 00:47:07

找不到libpq-fe.h头文件

我在CentOS 7.0.1406上运行以下命令成功:

~ % psql --version # => psql (PostgreSQL) 9.4.1
yum install libpqxx-devel
gem install pg -- --with-pg-config=/usr/pgsql-9.4/bin/pg_config

或者，你可以配置捆绑器总是安装pg，使用这些选项(有助于在部署环境中运行捆绑器)，

包配置构建。pg - with-pg-config = / usr / bin / pg_config / pgsql - 9.4

2015-03-02 01:51:56

安装pg gem时找不到'libpq-fe.h头文件

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