I'm having this error while running bundle install
"An error occurred while installing pg (0.21.0), and Bundler can not continue. Make sure that 'gem install pg -v' 0.21.0 '' succeeds before bundling. In Gemfile: "
This is the gem in my Gemfile: "gem 'pg', '~> 0.18'"
I tried to run gem install pg -v '0.21.0' and then bundle install and I get
To see why this extension failed to compile, please check the mkmf.log which can be found here: /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-17/2.3. 0 / pg-0.21.0 / mkmf.log extconf failed, exit code 1 Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/pg-0.21.0 for inspection. Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-17/2.3. 0 / pg-0.21.0 / gem_make .out
mkmf.log:
error while running bundle install :::: Fetching pg 0.21.0
Installing pg 0.21.0 with native extensions
Gem :: Ext :: BuildError: ERROR: Failed to build gem native extension.current directory: checking for pg_config... yes Using config values from /usr/local/bin/pg_config 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 ***