gem install pg not working on Mac El Capitan

Try this:

brew update
brew install postgresql
sudo gem install pg -v 'VERSION'

This worked for me:
sudo gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config

Remember to change 9.4 to your postgres version, if different from 9.4.

Tags:

Ruby On Rails

Rubygems

Bundle

Pg

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