Question

我将在Heroku上部署我的应用程序，但希望在SQLite上进行本地开发。这是我添加到Gemfile中的代码。

group :development, :test do
    gem 'sqlite3'
end

group :production do
    gem 'postgresql'
end

当我进行捆绑安装时，这是我得到的错误。

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/Fulcrum/.rbenv/versions/2.1.0/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
    --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=/Users/Fulcrum/.rbenv/versions/2.1.0/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}/lib

extconf failed, exit code 1

Gem files will remain installed in /Users/Fulcrum/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/pg-0.17.1 for inspection.
Results logged to /Users/Fulcrum/.rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-13/2.1.0-static/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.

Answer 1

在没有生产的情况下尝试捆绑安装：

bundle install --without production

Answer 2

安装缺少的libpq-dev。

brew install libpq-dev

然后进行捆绑安装，这应该可以解决您的问题。

无法在mac上安装postgresql gem

2 个答案: