我有一个我想开始使用的rails应用程序，但我无法解决这个错误。我无法安装pg -v -0.10.1 gem我试过从我的整个系统重新安装Postgressql并且没有用。我试过运行下面的命令，它运行成功，但我仍然无法成功运行bundle install。
env ARCHFLAGS="-arch x86_64" gem install pg
I followed the instructions of this thread step by step but no cigar.
我只是不断收到以下错误消息。
`Building native extensions with: '--with-pg-config= /usr/local/bin/pg_config'
This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb --with-pg-config= /usr/local/bin/pg_config
Using config values from
sh: : command not found
sh: : command not found
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for pg_config_manual.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)
*** 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=/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
--with-pg
--without-pg
--enable-windows-cross
--disable-windows-cross
--with-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}/
--with-pqlib
--without-pqlib
--with-libpqlib
--without-libpqlib
--with-ms/libpqlib
--without-ms/libpqlib
enter code here
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/pg-0.18.2 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/pg-0.18.2/ext/gem_make.out`