无法安装PG宝石 [英] unable to install pg gem

问题描述

我尝试使用 gem install pg ，但它似乎没有用。

gem install pg 给出此错误

 临时增强PATH以包含DevKit ... 
构建本地扩展。这可能需要一段时间... 
错误：安装pg时出错：
错误：无法构建gem本机扩展。 
 
 C：/Ruby/bin/ruby.exe extconf.rb 
检查pg_config ... no 
没有pg_config ...无论如何。如果构建失败，请再次尝试使用
 --with-pg-config = / path / to / pg_config 
检查libpq-fe.h ... no 
无法找到'libpq-fe.h头文件
 *** extconf.rb失败*** 
由于某种原因无法创建Makefile，可能缺少
必需的库和/或头文件。查看mkmf.log文件以获取更多
的详细信息。您可能需要配置选项。 
 
提供的配置选项：
 --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 = C：/ Ruby / 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文件将保留在C：/Ruby/lib/ruby/gems/1.8/gems/pg- 0.10.1为
检查。 
记录到C的结果：/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1/ext/gem_make.out 
  

解决方案

在这里回答：
无法在Windows上安装pg gem

没有Windows原生版本
最新版本的pg（0.10.0）昨天发布了
，但是如果你安装了0.9.0，
应该安装二进制文件而不需要
的问题。

I tried using gem install pg but it doesn't seem to work.

gem install pg gives this error

Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing pg:
        ERROR: Failed to build gem native extension.

C:/Ruby/bin/ruby.exe 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=C:/Ruby/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 C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1 for
inspection.
Results logged to C:/Ruby/lib/ruby/gems/1.8/gems/pg-0.10.1/ext/gem_make.out

解决方案

Answered here: Can't install pg gem on Windows

There is no Windows native version of latest release of pg (0.10.0) released yesterday, but if you install 0.9.0 it should install binaries without issues.

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