rails 3 generate controller not working - ruby-on-rails

i'm learning RoR, and I'm getting an error when generating a controller
mitchell#ubuntu:~/Ruby/Website/blog$ rails generate controller posts
/home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/execjs-1.4.0/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/execjs-1.4.0/lib/execjs.rb:5:in `<module:ExecJS>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/execjs-1.4.0/lib/execjs.rb:4:in `<top (required)>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `<top (required)>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `<top (required)>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `<top (required)>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:68:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:66:in `each'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:66:in `block in require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:55:in `each'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler/runtime.rb:55:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327#global/gems/bundler-1.2.1/lib/bundler.rb:128:in `require'
from /home/mitchell/Ruby/Website/blog/config/application.rb:7:in `<top (required)>'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:24:in `require'
from /home/mitchell/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.9/lib/rails/commands.rb:24:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
I'm running Rails 3.2.9 and Ruby 1.9.3 on Ubuntu.

You are missing a command line Javascript interpreter on your development machine.
Install node.js and you should be good.
And for the record, this message seems pretty clear:
Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
Did you go to that URL and see what it says?
In general, error messages are very helpful things. When something doesn't work that message is supposed to tell you why, and sometimes even how to fix it.

Related

in `<module:Helpers>': uninitialized constant ActionView::Helpers::ActiveModelHelper (NameError)

I have just started learning Ruby on Rails. I installed all the related softwares and started exploring the same. When I try to start the default server in Rails (WEBrick), I am getting the following error.
C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.5/lib/action_view/helpers.rb:40:in `<module:Helpers>': uninitialized constant ActionView::Helpers::ActiveModelHelper (NameError)
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.5/lib/action_view/helpers.rb:4:in `<module:ActionView>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.5/lib/action_view/helpers.rb:3:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.5/lib/action_view/base.rb:5:in `require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/actionview-4.2.5/lib/action_view/base.rb:5:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web_console/template.rb:7:in `<class:Template>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web_console/template.rb:6:in `<module:WebConsole>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web_console/template.rb:1:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web_console.rb:12:in `require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web_console.rb:12:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web-console.rb:1:in `require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/web-console-2.2.1/lib/web-console.rb:1:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
from C:/Temp/Rails-Project/Sites/simple_cms/config/application.rb:7:in `<top (required)>'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:78:in`require'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:78:in`block in server'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:75:in`tap'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:75:in`server'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands/commands_tasks.rb:39:in`run_command!'
from C:/Apps/Ruby22-x64/lib/ruby/gems/2.2.0/gems/railties-4.2.5/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
Upon research in SOF, found from the link and other link that the nokogiri needs to be updated in the Gemfile. I updated and executed the Bundle Install command. Even after that, its not working. Please suggest me the ways to fix it. FYI, I am using the latest versions of gems.
I also updated my Gemfile with
gem 'rack', '~> 1.6.0'
It did not work.
Install an older version of rails (4.0.0) because I think windows doesn't have stable version of rails > 4.0.
Change the version in gemfile.

Stuck installing Rails: rails s and bundle exec rails server error

I am using Windows 7, Ruby 2.2.1, and Rails 4.2.0.
I get the following error after running rails s or bundle exec rails server:
C:/Ruby22/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2-x86-mingw32/lib/nokogiri.rb:29:in `require': cannot load such file -- nokogiri/nokogiri (LoadError)
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2-x86-mingw32/lib/nokogiri.rb:29:in `rescue in <top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2-x86-mingw32/lib/nokogiri.rb:25:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/loofah-2.0.1/lib/loofah.rb:3:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/loofah-2.0.1/lib/loofah.rb:3:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/rails-html-sanitizer-1.0.1/lib/rails-html-sanitizer.rb:2:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/rails-html-sanitizer-1.0.1/lib/rails-html-sanitizer.rb:2:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/sanitize_helper.rb:3:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/sanitize_helper.rb:3:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/text_helper.rb:32:in `<module:TextHelper>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/text_helper.rb:29:in `<module:Helpers>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/text_helper.rb:6:in `<module:ActionView>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/text_helper.rb:4:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_tag_helper.rb:18:in `<module:FormTagHelper>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_tag_helper.rb:14:in `<module:Helpers>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_tag_helper.rb:8:in `<module:ActionView>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_tag_helper.rb:6:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:4:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers/form_helper.rb:4:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers.rb:50:in `<module:Helpers>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers.rb:4:in `<module:ActionView>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/helpers.rb:3:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/legacy_asset_tag_helper.rb:7:in `<module:LegacyAssetTagHelper>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/legacy_asset_tag_helper.rb:6:in `<module:Rails>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/legacy_asset_tag_helper.rb:4:in `<module:Sprockets>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/legacy_asset_tag_helper.rb:3:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/helper.rb:45:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/helper.rb:45:in `<module:Helper>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/helper.rb:7:in `<module:Rails>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/helper.rb:6:in `<module:Sprockets>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/rails/helper.rb:5:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/railtie.rb:6:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sprockets-rails-2.2.4/lib/sprockets/railtie.rb:6:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass/rails/railtie.rb:2:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass/rails/railtie.rb:2:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass/rails.rb:11:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass/rails.rb:11:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass-rails.rb:1:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/sass-rails-5.0.1/lib/sass-rails.rb:1:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:76:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:72:in `each'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:72:in `block in require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:61:in `each'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler/runtime.rb:61:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/bundler-1.8.4/lib/bundler.rb:134:in `require'
from C:/Users/David/Documents/testapp/config/application.rb:7:in `<top (required)>'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from C:/Ruby22/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
I have also run gem list, and these gems are installed. Is it an issue with certain gem versions?
Also, it's 64-bit Windows; could it be in issue with that? I installed the 32 bit, so it should be compatible, right? I will try to uninstall and re-install everything with the 64-bit version of the DevKit and Ruby.
Thanks!
I had a very similar issue just today. I tried to do a new installation of ruby and rails today and I couldn't get "rails server" to work for the exact same reason.
In order to get this to work, you need to run
gem install nokogiri --platform="ruby"
but this fails on Windows because nokogiri doesn't compile properly on Windows.
It's supposed to work with the pre-compiled binary installation that RubyGems pulls down, but I think there's a bug somewhere in RubyGems or nokogiri that's causing this to not work right now, but I'm not sure.
Yeah, so I rolled back to 2.0.0. and it worked. You get "DL is deprecated, please use Fiddle" which I found here, Ruby 2.0.0p0 IRB warning: "DL is deprecated, please use Fiddle", is just a warning. Still switching to Ubuntu soon.

ruby on rails server wont start missing devise files

Hi I am having a problem using devise with the ruby on rails server. My server was running fine until I ran a rake routes and realized the server is missing some devise files. Currently the ruby on rails server wont even start. I do remember moving my devise folder but cant remember where it should be for the server to come back online.
This is the error message I get in the console. Can someone please help? Thanks.
C:\Users\rich\treebook>rails server
C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-3.2.1/lib/devise.rb:266:in `<m
odule:Devise>': cannot load such file -- devise/controllers/helpers (LoadError)
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/devise-3.2.1/lib/devise.
rb:8:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:72:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:72:in `block (2 levels) in require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:70:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:70:in `block in require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:59:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r/runtime.rb:59:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundle
r.rb:132:in `require'
from C:/Users/Sam/treebook/config/application.rb:7:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rail
s/commands.rb:53:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rail
s/commands.rb:53:in `block in <top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rail
s/commands.rb:50:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rail
s/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Have you done
rails generate devise:install?
Also I agree with Zippie that uninstalling and reinstalling may be the way to go.

Can't start rails server mysql2 gem?

Ruby and rails noob, made a project and got this far. But now I'm getting these errors when trying to run rails server. I'm using Windows vista and ruby 2.0.0.
D:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.11-x86-mingw32/lib/mysql2/mysql2.
rb:2:in `require': cannot load such file -- mysql2/2.0/mysql2 (LoadError)
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2/mysql2.rb:2:in `<top (required)>'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2.rb:9:in `require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/mysql2-0.3.11-x86-mingw32/lib/m
ysql2.rb:9:in `<top (required)>'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:72:in `require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:72:in `block (2 levels) in require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:70:in `each'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:70:in `block in require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:59:in `each'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler/runti
me.rb:59:in `require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.4/lib/bundler.rb:13
2:in `require'
from D:/wamp/www/simple_cms/config/application.rb:7:in `<top (required)>
'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/comma
nds.rb:53:in `require'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/comma
nds.rb:53:in `block in <top (required)>'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/comma
nds.rb:50:in `tap'
from D:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/comma
nds.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
I know very little about ruby and gems so far but the mysql2 gem seems to be a problem wich I have installed and installed to no help. I do constantly get a message that I have installed the binary version with orders that I've followed. Is this a good or bad thing?
Anyone please help me out, if you need more info just let me know.
I think the answer here is what you are looking for:
stackoverflow.com/a/5368767/1622843
Basically, you need to point the gem to use your mysql instance installed on your machine.

No Javascript runtime on windows when running rails server

I'm completely new to Ruby on Rails, and I'm having trouble setting it up on my Windows PC. I have successfully followed the instructions on http://rubyonrails.org/download. However, when I go to run the rails server command I come up with this output:
C:/Ruby192/lib/ruby/gems/1.9.1/gems/execjs-1.2.9/lib/execjs/runtimes.rb:47:in `a
utodetect': Could not find a JavaScript runtime. See https://github.com/sstephen
son/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/execjs-1.2.9/lib/execjs.rb:5:in
`<module:ExecJS>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/execjs-1.2.9/lib/execjs.rb:4:in
`<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee_
script.rb:1:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee_
script.rb:1:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee-
script.rb:1:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-script-2.2.0/lib/coffee-
script.rb:1:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-rails-3.1.1/lib/coffee-r
ails.rb:1:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/coffee-rails-3.1.1/lib/coffee-r
ails.rb:1:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:68:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:68:in `block (2 levels) in require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:66:in `each'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:66:in `block in require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:55:in `each'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/runt
ime.rb:55:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler.rb:1
22:in `require'
from C:/RoR/tickets/config/application.rb:7:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.1.1/lib/rails/comman
ds.rb:52:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.1.1/lib/rails/comman
ds.rb:52:in `block in <top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.1.1/lib/rails/comman
ds.rb:49:in `tap'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.1.1/lib/rails/comman
ds.rb:49:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
When i go to the website https://github.com/sstephenson/execjs I'm still uncertain of how to proceed. Can someone point me in the right direction (remember I'm a newbie)? Thanks!
I met that problem too
The solution for me is just add
C:\Windows\System32
to the PATH
and restart your computer.
I got it working by installing node.js from http://nodejs.org/ (INSTALL link)
and added its install path (includes node.exe) to my windows user '
Path' environment variable. I also added Yang's reply path to above mentioned windows variable.
This may not be a universally popular answer, but for a new user, I would comment out the lines in the gemfile that are loading sass and coffeescript. Not that they are at all bad - but I think they add unnecessary complication for someone getting to grips with the framework. Alternatively if you are already familiar with these components, then you just need to install a javascript runtime -I use node.js

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