An Error Occurred While Installing Pg 0 18 1 and Bundler Cannot Continue

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I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get:

                Installing pg (0.17.1)  Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/Dee/.rvm/rubies/ruby-2.0.0-p247/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.                              

How do I fix this?

asked Dec 24, 2013 at 2:28

DeekorDeekor

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2

I'm on a Mac running Mavericks. My solution was to install Postgres.

And then in terminal install using homebrew with the configuration:

                  gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/latest/bin/pg_config                                  

Note: This answer has been edited to use the latest symlink that is currently included in shipping versions of the Postgres app.

Previous versions suggested:

                  gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config                                  

LunaCodeGirl

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answered Mar 19, 2014 at 1:43

Bob O'BrienBob O'Brien

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7

app root:

1. brew update
2. brew install postgres
3. gem install pg -- --with-pg-config=/usr/local/Cellar/postgresql/9.3.4/bin/pg_config
4. bundle install
5. ln -sfv /usr/local/opt/postgresql/*.plist ~/Library/LaunchAgents
6. launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
7. createuser -s -r postgres
8. rake db:create:all
9. rake db:migrate
10. rails s

NOTE: replace the version number in step 3 if needed.

answered May 7, 2014 at 21:12

kniceknice

391 2 silver badges 8 bronze badges

Previously working answer with older version

I installed under mac OSX Mavericks, having the postgres app (Version 9.2.2.0 ) from www.postgresapp.com installed. The underlying problem was simpy that the since postgres was installed via the app, the configuration file resides on a location which is not the default one when installing it without postgressapp. so we need to tell gem where to find this file by:

                  gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/MacOS/bin/pg_config                                  

Hope it helps

answered Feb 5, 2014 at 10:34

2

If gem install pg fails, try the following command:

                  env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/MacOS/bin/pg_config                                  

... from the PostgreSQL.app Documentation

answered Dec 24, 2013 at 2:57

VinceVince

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2

Looks like you do not have PostgreSQL installed. The pg gem requires some headers from PostgreSQL to compile native extension.

answered Dec 24, 2013 at 2:38

tungdtungd

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4

I had to combine everything and use

                sudo env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.4/bin/pg_config                              

answered Apr 28, 2015 at 16:28

Mark WangMark Wang

342 3 silver badges 11 bronze badges

If you are using something other than Postgres in development and Postgres in production only, you can add the pg gem to your gemfile like so...

                group :production do   gem 'pg',             '0.17.1' end                              

Then use bundle install --without production

answered Aug 14, 2015 at 5:12

j8dj8d

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For CentOS users:

                sudo yum install postgresql-devel                              

and

                gem install pg                              

answered Oct 19, 2017 at 5:47

websterwebster

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I have just set up a new Macbook Pro which was prebuilt with Catalina.

What worked for me:

1. Install the Postgres from here: https://postgresapp.com/
2. Add export PATH="/Applications/Postgres.app/Contents/Versions/latest/bin:$PATH"to your .zshenv, since Z shell is now the default terminal.

answered Dec 12, 2019 at 21:32

Henrik HolmHenrik Holm

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After installing Postgres I had to run the following command

                  env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.3/bin/pg_config                                  

After this bundle install works great!

Hope it helps

answered Nov 2, 2014 at 1:26

0

The way I managed to get past that error was:

• cd to app folder and then set the ruby version locally. I'm using ruby 2.1.2.

rbenv local 2.1.2

• instead of just running bundle install, install the gems in vendor/bundle

bundle install --path vendor/bundle

This did it for me.

answered Nov 18, 2014 at 15:36

I needed to use sudo

                sudo gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/9.5/bin/pg_config                              

answered Feb 29, 2016 at 0:18

gypsyDevgypsyDev

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I was having a problem with Amazon and couldn't use apt-get. For my worked:

                                  sudo yum install postgresql-devel                              

then:

                                  bundle install                              

and try again:

                                  rails serve                              

answered Apr 1, 2019 at 22:40

If you installed through Homebrew; gem install pg -- --with-pg-config=/usr/local/bin/pg_config. Works with Ruby 2.4.6 and pg 0.20.0.

answered May 14, 2019 at 16:36

zykadeliczykadelic

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On mac this command worked for me.

gem install pg -v '0.18.4' -- --with-cflags="-Wno-error=implicit-function-declaration"

answered Jul 25 at 15:25

vikas95prasadvikas95prasad

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It works for me

                  rvm list gemsets rvm use ruby-2.4.1 bundle                                  

]2

answered Jan 27, 2018 at 23:13

1

campbellvely1989.blogspot.com

Source: https://stackoverflow.com/questions/20754081/an-error-occurred-while-installing-pg-0-17-1-and-bundler-cannot-continue

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