PostgreSQL gem pg was unable to install

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孤城傲影
孤城傲影 2021-01-31 09:23

My DB is PostgreSQL.I am on CENTOS.... While installing the pg gem I received the following error. I reinstalled to clear my YAML problem also, which didn\'t work, but it is jus

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  • 2021-01-31 09:31

    I got the same error on Centos. By googling I found two commands to use:

    1. yum install postgresql-libs -- It gave me message saying, its already installed.
    2. yum install postgresql-devel -- It solved my error related to pg_config for installing the 'pg' .gem.

    Hope it helps :)

    apos wrote: on Ubuntu 14.04 install:

    1. apt-get install postgresql-server-dev-9.3 libpq-dev
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  • 2021-01-31 09:31

    Here's my recipe for getting PostgreSQL, RVM, Ruby, Rails all up and running on CentOS

    PostgreSQL

    First, follow the instructions on http://wiki.postgresql.org/wiki/YUM_Installation to get PostgreSQL installed:

    sudo vi /etc/yum.repos.d/CentOS-Base.repo

    [base]
    exclude=postgresql*
    
    [updates]
    exclude=postgresql*
    

    Get the latest PGDG RPM file (for your platform/architecture), for example:

    curl -O http://yum.postgresql.org/9.2/redhat/rhel-latest-x86_64/pgdg-redhat92-9.2-7.noarch.rpm
    

    Then

    sudo rpm -ivh pgdg-redhat92-9.2-7.noarch.rpm
    sudo yum install -y postgresql92-server postgresql92-devel
    

    Initialize the database:

    sudo service postgresql-9.2 initdb
    

    Configure /var/lib/pgsql/9.2/data/postgresql.conf and /var/lib/pgsql/9.2/data/pg_hba.conf as needed.

    Start PostgreSQL server:

    sudo service postgresql-9.2 start
    

    RVM

    sudo yum -y groupinstall "Development Tools"
    sudo yum -y install zlib zlib-devel sqlite-devel httpd curl-devel httpd-devel apr-devel apr-util-devel mlocate man libxml2-devel libxslt-devel libffi-devel readline-devel
    

    Note, NOT as root:

    \curl -L get.rvm.io | sudo bash -s stable
    

    Logout and back on. Afterwards, which rvm should reply with /usr/local/rvm/bin/rvm and type rvm|head -1 should say rvm is a function.

    Ruby + Rails

    rvm install 1.9.3 --with-openssl-dir=/usr
    rvm use 1.9.3 --default
    gem install rake
    gem install rails
    

    PostgreSQL gem

    gem install pg -- --with-pg-config=/usr/pgsql-9.2/bin/pg_config
    

    The --with-pg-config is somehow needed with my latest installation of CentOS, otherwise, gem install pg can't find pg_config. YMMV, but if you follow all the above to the letter (which I've done enough times in the past few months) just let me know if anything trips you up.

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  • 2021-01-31 09:33

    try installing libpq package by doing:

    sudo apt-get install libpq-dev
    

    That package helps with pg gem and you should be fine after that :)

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  • 2021-01-31 09:33

    Using AWS Cloud 9 Linux:

    sudo yum install postgresql-libs

    then:

    sudo yum install postgresql-devel

    then:

    gem update --system

    if needed, then:

    gem install bundler (Bundler 2.0)

    then:

    bundle install

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  • 2021-01-31 09:34

    Try to install postgresql server and corresponding libraries. Then install the pg gem. Then it will work for u

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  • 2021-01-31 09:36
    $ sudo apt-get install libpq-dev
    $ sudo apt-get install libdbd-pg-ruby1.8
    

    then:

    $ sudo apt-get install pg  
    

    for CentOS please read the below link..

    http://wiki.postgresql.org/wiki/YUM_Installation

    To install pg in centOS

    run this commands
    
    bundle config build.pg 
    
    gem install pg -v '0.12.0'
    
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