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Development Tools Installing a Ruby Development Environment Installing a Ruby Development Environment Installing Ruby on Mac

Owen Tran
Owen Tran
6,822 Points
Posted by Owen Tran
Owen Tran
6,822 Points

"bin/rails server" command failing on fedora, please help 

rails new testapp
cd testapp
bin/rails server
Application Address:
http://localhost:3000/

i am following the steps listed but when I get to bin/rails server this comes up:

/home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/execjs-2.5.2/lib/execjs/runtimes.rb:48:in `autodetect': Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/execjs-2.5.2/lib/execjs.rb:5:in `<module:ExecJS>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/execjs-2.5.2/lib/execjs.rb:4:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/uglifier-2.7.1/lib/uglifier.rb:3:in `require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/uglifier-2.7.1/lib/uglifier.rb:3:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:76:in `require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:72:in `each'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:72:in `block in require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:61:in `each'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler/runtime.rb:61:in `require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/bundler-1.9.4/lib/bundler.rb:134:in `require'
    from /home/owen/testapp/config/application.rb:7:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:78:in `require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:78:in `block in server'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in `tap'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in `server'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands.rb:17:in `<top (required)>'
    from /home/owen/testapp/bin/rails:8:in `require'
    from /home/owen/testapp/bin/rails:8:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/client/rails.rb:28:in `load'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/client/rails.rb:28:in `call'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/client/command.rb:7:in `call'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/client.rb:26:in `run'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/bin/spring:48:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `load'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.4/lib/spring/binstub.rb:11:in `<top (required)>'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /home/owen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
    from /home/owen/testapp/bin/spring:13:in `<top (required)>'
    from bin/rails:3:in `load'
    from bin/rails:3:in `<main>'

i went to the website it suggested and installed "gem install execjs" but no change.

Ryan Duchene
Ryan Duchene
Courses Plus Student 46,022 Points

I edited your post to format your commands and stack trace. :)

4 Answers

Ryan Duchene
Ryan Duchene
Courses Plus Student 46,022 Points

Nathan Williams offered an answer that will definitely work. I was going to suggest that you open your Gemfile, uncomment this line...

# gem "therubyracer"

...and run bundle install. Either way should work.

Nathan Williams
seal-mask
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points
Nathan Williams
.a{fill-rule:evenodd;}techdegree
Nathan Williams
Python Web Development Techdegree Student 6,851 Points

woohoo! another Fedora user! greetings!

i usually just install node for the js executable; try sudo yum -y install node and give it another go.

HTH,

Nathan

Owen Tran
Owen Tran
6,822 Points
Owen Tran
Owen Tran
6,822 Points

[owen@localhost testapp]$ sudo yum -y install node [sudo] password for owen: Loaded plugins: langpacks Package node-0.3.2-16.fc21.x86_64 already installed and latest version Nothing to do

[owen@localhost testapp]$ # gem therubyracer [owen@localhost testapp]$ bundle install Using rake 10.4.2 Using i18n 0.7.0 Using json 1.8.2 Using minitest 5.6.0 Using thread_safe 0.3.5 Using tzinfo 1.2.2 Using activesupport 4.2.1 Using builder 3.2.2 Using erubis 2.7.0 Using mini_portile 0.6.2 Using nokogiri 1.6.6.2 Using rails-deprecated_sanitizer 1.0.3 Using rails-dom-testing 1.0.6 Using loofah 2.0.1 Using rails-html-sanitizer 1.0.2 Using actionview 4.2.1 Using rack 1.6.0 Using rack-test 0.6.3 Using actionpack 4.2.1 Using globalid 0.3.5 Using activejob 4.2.1 Using mime-types 2.5 Using mail 2.6.3 Using actionmailer 4.2.1 Using activemodel 4.2.1 Using arel 6.0.0 Using activerecord 4.2.1 Using debug_inspector 0.0.2 Using binding_of_caller 0.7.2 Using columnize 0.9.0 Using byebug 4.0.5 Using coffee-script-source 1.9.1.1 Using execjs 2.5.2 Using coffee-script 2.4.1 Using thor 0.19.1 Using railties 4.2.1 Using coffee-rails 4.1.0 Using multi_json 1.11.0 Using jbuilder 2.2.13 Using jquery-rails 4.0.3 Using bundler 1.9.4 Using sprockets 3.0.2 Using sprockets-rails 2.2.4 Using rails 4.2.1 Using rdoc 4.2.0 Using sass 3.4.13 Using tilt 1.4.1 Using sass-rails 5.0.3 Using sdoc 0.4.1 Using spring 1.3.4 Using sqlite3 1.3.10 Using turbolinks 2.5.3 Using uglifier 2.7.1 Using web-console 2.1.2 Bundle complete! 12 Gemfile dependencies, 54 gems now installed. Use bundle show [gemname] to see where a bundled gem is installed.

I did both, it's still not working :( anymore suggestions?? bin/rails server gives me the identical message in the original post.

Owen Tran
Owen Tran
6,822 Points
Owen Tran
Owen Tran
6,822 Points

ok guys i tried : sudo yum -y install nodejs

got it working now, Thanks. Started fedora a week ago, slowly getting there :)