I’ve been getting into ruby on rails but I’ve had lots of problems with

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Asked: June 11, 20262026-06-11T16:47:05+00:00 2026-06-11T16:47:05+00:00

I’ve been getting into ruby on rails but I’ve had lots of problems with

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I’ve been getting into ruby on rails but I’ve had lots of problems with “runtimeerror”
I’ve tried installing more than once but still I can’t fix the problem, I’ve searched for more times that I would’ve liked and still nothing.

Each time I try to do a simple hello world (simple app) I get runtime error.
For example if I try to do : rails server, or gem ‘therubyracer’, etc. I will get runtimeerror. I have no idea what the problem might be; here’s the errors I’ve been getting:

Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)


ERROR:  While executing gem ... (RuntimeError)
Unknown command therubyracer

I hope you guys can help me out to fix this so I can move on and start programming 🙂 thanks in advance!

By the way this are my versions of everything I’m currently using :

ruby 1.9.3p194 (2012-04-20 revision 35410) [i686-linux]

rvm 1.15.9 (stable) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]

Rails 3.2.8

Edit, maybe I should note that I followed this tutorial to install RoR: https://www.digitalocean.com/community/articles/how-to-install-ruby-on-rails-on-ubuntu-12-04-lts-precise-pangolin-with-rvm