Rails unable to generate model

Question

I am trying to learn rails by following the tutorial here . However when I got to the section on creating the model and ran this command:

bin/rails generate model Article title:string text:text

I got this error:

/usr/lib/ruby/vendor_ruby/spring/application.rb:152:in `serve': undefined method `cleanup!' for ActionDispatch::Reloader:Class (NoMethodError)
from /usr/lib/ruby/vendor_ruby/spring/application.rb:131:in `block in run'
from /usr/lib/ruby/vendor_ruby/spring/application.rb:125:in `loop'
from /usr/lib/ruby/vendor_ruby/spring/application.rb:125:in `run'
from /usr/lib/ruby/vendor_ruby/spring/application/boot.rb:18:in `<top (required)>'
from /usr/local/lib/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/lib/site_ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'

This is my second go through so I know I have followed all the steps. Any idea where I might look for the solution or know what the solution is? This really has me stuck.

Versions:

• Ubuntu 16.04
• ruby 2.3.1p112 (2016-04-26) [x86_64-linux-gnu]
• gem 2.6.12
• rails 5.1.0

Answer 1

基于此问题 ，您可以运行spring stop并尝试再次运行命令吗？

Answer 2

Restarting worked for me too, but I needed to do it every-time. Instead, I upgraded to to the latest version of spring (2.0.2) in my gemfile. This fixed it.