WEBrick (Rails Server) does not start. What's the matter?

Question

Ruby on Rails

When starting the Rails server, the following happens and the server does not start:

[email protected]:~/workspace/ruby/blog$ rails s
/home/matt/.rvm/gems/ruby-2.2.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in ` rescue in block (2 levels) in require': There was an error while trying to load the gem 'uglifier'. (Bundler::GemRequireError)
from /home/matt/.rvm/gems/ruby-2.2.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require '
from /home/matt/.rvm/gems/ruby-2.2.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
from /home/matt/.rvm/gems /ruby-2.2.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/ bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/bundler-1.11.2/lib/bundler/runtime .rb:61:
from /home/matt/.rvm/gems/ruby-2.2.1/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
from /home/matt/workspace/ruby/blog/config /application.rb:7:in `'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:78:in `require '
from /home/matt/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from /home/matt/ .rvm/gems/ruby-2.2.1/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /home/matt/.rvm/gems/ruby-2.2. 1/gems/railties-4.2.5.1/lib/rails/commands/commands_tasks.rb:75:in `server'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5.1 /lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/railties-4.2.5.1/lib/rails/commands.rb:17:in `'
from /home/matt/workspace/ruby/blog/ bin/rails:9:in `require'
from /home/matt/workspace/ruby/blog/bin/rails:9:in `'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/ spring-1.6.4/lib/spring/client/rails.rb:28:in `load'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/spring-1.6.4/lib/spring /client/rails.rb:28:in `call'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/spring-1.6.4/lib/spring/client/command.rb:7: in `call'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/spring-1.6.4/lib/spring/client.rb:28:in `run'
from /home/matt/. rvm/gems/ruby-2.2.1/gems/spring-1.6.4/bin/spring:49:in `'
from /home/matt/.rvm/gems/ruby-2.2.1/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `load'
from /home/matt/.rvm/gems/ ruby-2.2.1/gems/spring-1.6.4/lib/spring/binstub.rb:11:in `'
from /home/matt/workspace/ruby/blog/bin/spring:13:in `require'
from /home/matt/workspace/ruby/blog/bin/spring:13:in `'
from bin/rails:3:in `load'
from bin/rails:3:in `'

Answer 1

Found a solution. To be honest, I don’t know what it has to do with it, but if it works, then it’s good. In general, you just had to install nodejs.
I hope that someone will be useful.

Answer 2

I had a similar error on prod. It got out when trying to compile an on-the-fly asset and when there was no 'therubyracer' gem.