Problem
The error message:
Building native extensions. This could take a while...
ERROR: Error installing rails:
ERROR: Failed to build gem native extension.
/usr/bin/ruby2.1 -r ./siteconf20150328-1540-hff2f0.rb extconf.rb
checking if the C compiler accepts ... *** 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=/usr/bin/ruby2.1
--help
--clean
/usr/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from /usr/lib/ruby/2.1.0/mkmf.rb:571:in `block in try_compile'
from /usr/lib/ruby/2.1.0/mkmf.rb:522:in `with_werror'
from /usr/lib/ruby/2.1.0/mkmf.rb:571:in `try_compile'
from extconf.rb:80:in `nokogiri_try_compile'
from extconf.rb:87:in `block in add_cflags'
from /usr/lib/ruby/2.1.0/mkmf.rb:621:in `with_cflags'
from extconf.rb:86:in `add_cflags'
from extconf.rb:337:in `<main>'
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.1.0/gems/nokogiri-1.6.6.2 for inspection.
Results logged to /var/lib/gems/2.1.0/extensions/x86_64-linux/2.1.0/nokogiri-1.6.6.2/gem_make.out
Configurations:
Asked by Allen
Solution #1
I needed to do the following after updating to Rails 4.2.4 on Ubuntu 14.04 using RVM:
sudo apt-get install libgmp-dev
or
sudo apt-get install libgmp3-dev
Full stacktrace: http://ruby-on-rails-eq8.blogspot.co.uk/2015/10/solving-ubuntu-1404-ruby-c-dependancy.html
Answered by equivalent8
Solution #2
It appears that you are missing a Ruby prerequisite. If you’re using RVM, try these commands:
rvm requirements
to acquire a list of dependencies and manually install them
Otherwise, use the following commands to install the known basic requirements:
sudo apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev autoconf libc6-dev ncurses-dev automake libtool
Answered by shivam
Solution #3
This error occurs because Ruby’s development requirements are lacking.
I suggest that you install and use RVM to solve this, check the official and updated instructions here https://rvm.io/rvm/install
When I was answering this question, I took the following steps:
gpg --keyserver hkp://keys.gnupg.net --recv-keys
409B6B1796C275462A1703113804BB82D39DC0E3
\curl -sSL https://get.rvm.io | bash
If you get a warning like this, don’t do anything.
* WARNING: You have '~/.profile' file, you might want to load it,
to do that add the following line to '/home/mao/.bash_profile':
source ~/.profile
execute this command:
echo source ~/.profile >> ~/.bash_profile
Then, by performing this, reload/apply the bash profile that you just updated:
source ~/.bash_profile
Finally, execute this to complete the installation:
rvm requirements
Any Linux distribution should work, including Ubuntu, Fedora, Debian, Redhat, and Slackware.
Answered by Mauricio Gracia Gutierrez
Solution #4
Centos 7 and Redhat 7:
yum -y install gcc ruby-dev
Answered by Abdennour TOUMI
Post is based on https://stackoverflow.com/questions/29317640/how-to-use-gem-to-install-rails-on-ubuntu