# Error installing therubyracer **URL:** \ **Category:** Rails\ **Created:** [May 18, 2012, 4:20pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855 "2012-05-18T16:20:08Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Post date:** [May 18, 2012, 4:20pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/1 "2012-05-18T16:20:08Z")
I’m struggling to install therubyracer gem. Using CentOS 6.2 x86\_64, ruby 1.9.3p194, gem 1.8.24, libv8 (3.10.8.0, 3.3.10.4 x86\_64-linux) Trying to install therubyracer gives me: Building native extensions. This could take a while… ERROR: Error installing therubyracer: ERROR: Failed to build gem native extension. ``` /usr/local/bin/ruby extconf.rb ``` \*\*\* 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/local/bin/ruby extconf.rb:15:in `
': undefined method`include\_path’ for Libv8:Module (NoMethodError) Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/ therubyracer-0.10.1 for inspection. Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/ therubyracer-0.10.1/ext/v8/gem\_make.out Any ideas? ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [May 19, 2012, 5:37pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/2 "2012-05-19T17:37:42Z")
Don’t suppose anyone else has had any problems installing therubyracer? Is there anything particular to look out for installing on 64-bit linux? ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [May 19, 2012, 7:11pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/3 "2012-05-19T19:11:48Z")
Try this: $ gem uninstall libv8 $ gem install therubyracer It works for me. ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [May 22, 2012, 12:15am UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/4 "2012-05-22T00:15:20Z")
Rails hosts, for instance Heroku, are strongly advising against therubyracer because of memory usage. I removed therubyracer from my gems and just did $sudo apt-get install nodejs. Not sure if that is the preferred method, but it works for me. ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [August 9, 2012, 3:45am UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/5 "2012-08-09T03:45:40Z")
I found a similar problem, but got a little nugget of info in the error on OS X 10.8 Mountain Lion: make compiling rr.cpp make: g+±4.2: No such file or directory make: \*\*\* [rr.o] Error 1 I found that all you need to do on Mountain Lion is: 1: Make sure you’ve installed Xcode command line tools so that the g++ directory is in /usr/bin 2: Type “sudo ln -s g++ g+±4.2” Enjoy 🙂 ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [May 22, 2012, 2:43am UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/6 "2012-05-22T02:43:14Z")
Just wanted to mention that I performed the steps mentioned by Meck Z. on osx lion to deal with the same issue. (was playing with fatfreecrm which now apparently uses therubyracer). Thanks! ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [August 21, 2012, 10:51pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/7 "2012-08-21T22:51:04Z")
Thanks zorz that worked for me. However anytime I type anything in terminal I get this line after: “-bash: \_\_git\_ps1: command not found” is there a way to get rid of this? ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [November 1, 2013, 11:59am UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/8 "2013-11-01T11:59:01Z")
Meck Z. wrote in post #1061376: > Try this: > > $ gem uninstall libv8 > $ gem install therubyracer > > It works for me. Worked for me too. ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [September 10, 2012, 10:44pm UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/9 "2012-09-10T22:44:07Z")
@johnrlive install git with homebrew rather than relying on the os x version. ---
**Author:** ![tfp44](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/58956e/32.png) [@tfp44](https://www.ruby-forum.com/u/tfp44)\ **Post date:** [April 18, 2015, 6:52am UTC](https://www.ruby-forum.com/t/error-installing-therubyracer/219855/10 "2015-04-18T06:52:22Z")
There’s an official Omnibus package for the RPi2, see ‘Omnibus package for Raspberry Pi 2’ on [Download and install GitLab | GitLab](https://about.gitlab.com/installation/)