安装gem’pg’时为什么会出错？
可能重复：
无法在ubuntu上安装pg gem – 找不到’libpq-fe.h标头
我正在尝试将gem pg添加到我的本地环境中。
但它返回此错误
Errno::EACCES: Permission denied - /Users/me/.rvm/gems/ruby-1.9.3-p362/gems/pg-0.14.1/.gemtest An error occurred while installing pg (0.14.1), and Bundler cannot continue. Make sure that `gem install pg -v '0.14.1'` succeeds before bundling. 我该怎么办？
在该错误消失后，现在它返回此错误
Installing pg (0.14.1) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/me/.rvm/rubies/ruby-1.9.3-p362/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 --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=/Users/me/.rvm/rubies/ruby-1.9.3-p362/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 /Users/me/.rvm/gems/ruby-1.9.3-p362/gems/pg-0.14.1 for inspection. Results logged to /Users/me/.rvm/gems/ruby-1.9.3-p362/gems/pg-0.14.1/ext/gem_make.out An error occurred while installing pg (0.14.1), and Bundler cannot continue. Make sure that `gem install pg -v '0.14.1'` succeeds before bundling.
我相信你以前在玩弄sudo
尝试
chown -R `whoami`:staff ~/.rvm/gems/ruby-1.9.3-p362/gems
看起来有人试图在过去安装它作为sudo。 我会检查该目录的权限，如果它们看起来不对，则会将文件chown。