问题描述
我正在使用Ruby on Rails 3.1预版本.我喜欢使用PostgreSQL，但是问题是安装pg gem.它给了我以下错误:
I am using the Ruby on Rails 3.1 pre version. I like to use PostgreSQL, but the problem is installing the pg gem. It gives me the following error:
$ 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
我该如何解决这个问题?
How do I solve this problem?
推荐答案
在Ubuntu中，标头似乎是 libpq-dev软件包(至少在以下Ubuntu版本中: 11.04 (Natty Narwhal)， 10.04 (Lucid Lynx)， 11.10 (Oneiric Ocelot)， 12.04 (精确的穿山甲)， 14.04 (Trusty Tahr)和 18.04 (仿生海狸):
It looks like in Ubuntu that header is part of the libpq-dev package (at least in the following Ubuntu versions:11.04 (Natty Narwhal), 10.04 (Lucid Lynx), 11.10 (Oneiric Ocelot), 12.04 (Precise Pangolin), 14.04 (Trusty Tahr) and 18.04 (Bionic Beaver)):
...
/usr/include/postgresql/libpq-fe.h
...
因此，请尝试为您的操作系统安装libpq-dev或等效版本:
So try installing libpq-dev or its equivalent for your OS:
- 对于Ubuntu/Debian系统:
sudo apt-get install libpq-dev - 在 Red Hat Linux (RHEL)系统上:
yum install postgresql-devel - 对于Mac 自制软件:
brew install postgresql - 对于Mac MacPorts PostgreSQL:
gem install pg -- --with-pg-config=/opt/local/lib/postgresql[version number]/bin/pg_config - 对于 OpenSuse :
zypper in postgresql-devel - 对于 ArchLinux :
pacman -S postgresql-libs
- For Ubuntu/Debian systems:
sudo apt-get install libpq-dev - On Red Hat Linux (RHEL) systems:
yum install postgresql-devel - For Mac Homebrew:
brew install postgresql - For Mac MacPorts PostgreSQL:
gem install pg -- --with-pg-config=/opt/local/lib/postgresql[version number]/bin/pg_config - For OpenSuse:
zypper in postgresql-devel - For ArchLinux:
pacman -S postgresql-libs
这篇关于尝试安装pg gem时找不到'libpq-fe.h标头的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！