我在Linux（CentOS）系统中安装PG时遇到错误。
gem install pg
然后我收到了以下错误
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
current directory: /usr/local/rvm/gems/ruby-2.3.0/gems/pg-0.18.4/ext
/usr/local/rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160831-5454-1endyls.rb extconf.rb
checking for pg_config... yes
Using config values from /usr/bin/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-2.3.0/bin/$(RUBY_BASE_NAME)
--with-pg
--without-pg
--enable-windows-cross
--disable-windows-cross
--with-pg-config
--without-pg-config
--with-pg_config
--without-pg_config
--with-pg-dir
--without-pg-dir
--with-pg-include
--without-pg-include=${pg-dir}/include
--with-pg-lib
--without-pg-lib=${pg-dir}/lib
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/usr/local/rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/pg-0.18.4/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /usr/local/rvm/gems/ruby-2.3.0/gems/pg-0.18.4 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/pg-0.18.4/gem_make.out
并且对于解决方案我尝试了很多东西并安装了所需的包但仍然得到相同的错误。你可以看到我的loggres日志*
运行后
yum list postgres *
Loaded plugins: priorities, update-motd, upgrade-helper
24 packages excluded due to repository priority protections
Installed Packages
postgresql92.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-contrib.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-devel.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-libs.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-server.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-server-compat.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql93.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-contrib.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-devel.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-libs.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-server.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql94.x86_64 9.4.6-1.66.amzn1 @amzn-main
postgresql94-libs.x86_64 9.4.6-1.66.amzn1 @amzn-main
Available Packages
postgresql-jdbc.noarch 8.4.701-8.11.amzn1 amzn-main
postgresql-jdbc-javadoc.noarch 9.4.1208-1.rhel6 pgdg92
postgresql-odbc.x86_64 08.04.0200-1.6.amzn1 amzn-main
postgresql8.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-contrib.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-devel.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-docs.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-libs.i686 8.4.20-5.52.amzn1 amzn-updates
postgresql8-libs.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-plperl.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-plpython.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-pltcl.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-server.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-test.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql92-debuginfo.x86_64 9.2.18-1PGDG.rhel6 pgdg92
postgresql92-docs.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-libs.i686 9.2.15-1.57.amzn1 amzn-main
postgresql92-odbc.x86_64 09.05.0400-1PGDG.rhel6 pgdg92
postgresql92-plperl.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-plpython.x86_64 9.2.18-1PGDG.rhel6 pgdg92
postgresql92-plpython26.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-plpython27.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-pltcl.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-python.x86_64 4.2-1PGDG.rhel6 pgdg92
postgresql92-python-debuginfo.x86_64 4.2-1PGDG.rhel6 pgdg92
postgresql92-tcl.x86_64 2.1.1-1.rhel6 pgdg92
postgresql92-tcl-debuginfo.x86_64 2.1.1-1.rhel6 pgdg92
postgresql92-test.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql93-docs.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-libs.i686 9.3.11-1.61.amzn1 amzn-main
postgresql93-plperl.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-plpython26.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-plpython27.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-pltcl.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-test.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql94-contrib.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-devel.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-docs.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-libs.i686 9.4.6-1.66.amzn1 amzn-main
postgresql94-plperl.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-plpython26.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-plpython27.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-server.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-test.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql_autodoc.noarch 1.41-1.rhel6 pgdg92
无法安装pg。请帮帮我。
我安装了
yum install postgresql92-server
Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest | 2.1 kB 00:00
amzn-updates/latest | 2.3 kB 00:00
24 packages excluded due to repository priority protections
Package postgresql92-server-9.2.15-1.57.amzn1.x86_64 already installed and latest version
Nothing to do
答案 0 :(得分：0)
似乎你必须安装postgres头文件和库。 因为你的系统是RHEL试试这个。
yum install postgresql-devel
如果您正在使用postgres 9.4，那么
yum install postgresql94-devel
然后重新运行gem install pg＆＃39;版本＆＃39;