当我尝试使用pg gem捆绑安装时出现此错误。我已经安装了postgresql gem。请告诉我我该怎么办？我看到其他Stackoverlfow帖子并实现了它们但它仍然显示此错误
当捆绑器尝试运行gem pg
时Installing pg (0.17.1)
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/home/salmanalam/.rvm/rubies/ruby-2.0.0-p353/bin/ruby extconf.rb
checking for pg_config... yes
Using config values from /usr/bin/pg_config
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
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/salmanalam/.rvm/rubies/ruby-2.0.0-p353/bin/ruby
--with-pg
--without-pg
--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}/
extconf failed, exit code 1
Gem files will remain installed in /home/salmanalam/.rvm/gems/ruby-2.0.0-p353/gems/pg- 0.17.1 for inspection.
Results logged to /home/salmanalam/.rvm/gems/ruby-2.0.0-p353/extensions/x86_64- linux/2.0.0/pg-0.17.1/gem_make.out
An error occurred while installing pg (0.17.1), and Bundler cannot continue.
Make sure that `gem install pg -v '0.17.1'` succeeds before bundling.
答案 0 :(得分：5)
看起来你在Linux上。
尝试为Debian / Ubuntu安装libpq-dev，或为RHEL系统安装postgresql-devel。