Problems installing RSpec - ruby-on-rails

I am currently trying to teach myself how to use rspec testing with rails. I was following the guides from the blog here,
http://everydayrails.com/2012/03/12/testing-series-rspec-setup.html
and came to the point where i was unable to run the command
"rails g rspec:install"
I wind up getting a whole host of issues being
/Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activerecord-4.2.1/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `devise' for Install (call 'Install.connection' to establish a connection):Class (NoMethodError) from /Users/kdweber89/Desktop/railspractice/firstApp/myApp/app/models/install.rb:4:in `<class:Install>'
from /Users/kdweber89/Desktop/railspractice/firstApp/myApp/app/models/install.rb:1:in `<top (required)>'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:457:in `load'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:457:in `block in load_file'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:647:in `new_constants_in'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:456:in `load_file'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:354:in `require_or_load'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:494:in `load_missing_constant'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:184:in `const_missing'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/inflector/methods.rb:261:in `const_get'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/inflector/methods.rb:261:in `block in constantize'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/inflector/methods.rb:259:in `each'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/inflector/methods.rb:259:in `inject'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/inflector/methods.rb:259:in `constantize'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:566:in `get'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:597:in `constantize'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise.rb:301:in `get'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/mapping.rb:80:in `to'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/mapping.rb:75:in `modules'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/mapping.rb:92:in `routes'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/mapping.rb:159:in `default_used_route'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/mapping.rb:69:in `initialize'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise.rb:335:in `new'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise.rb:335:in `add_mapping'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/rails/routes.rb:224:in `block in devise_for'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/rails/routes.rb:223:in `each'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/devise-3.3.0/lib/devise/rails/routes.rb:223:in `devise_for'
from /Users/kdweber89/Desktop/railspractice/firstApp/myApp/config/routes.rb:2:in `block in <top (required)>'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/actionpack-4.2.1/lib/action_dispatch/routing/route_set.rb:432:in `instance_exec'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/actionpack-4.2.1/lib/action_dispatch/routing/route_set.rb:432:in `eval_block'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/actionpack-4.2.1/lib/action_dispatch/routing/route_set.rb:410:in `draw'
from /Users/kdweber89/Desktop/railspractice/firstApp/myApp/config/routes.rb:1:in `<top (required)>'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in `load'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in `block in load'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in `load'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in `each'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in `load_paths'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:16:in `reload!'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:26:in `block in updater'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/file_update_checker.rb:75:in `call'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/file_update_checker.rb:75:in `execute'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:27:in `updater'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application/finisher.rb:69:in `block in <module:Finisher>'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/initializable.rb:30:in `run'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:345:in `each'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:345:in `call'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/railties-4.2.1/lib/rails/application.rb:352:in `initialize!'
from /Users/kdweber89/Desktop/railspractice/firstApp/myApp/config/environment.rb:5:in `<top (required)>'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `block in require'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application.rb:92:in `preload'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application.rb:143:in `serve'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application.rb:131:in `block in run'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application.rb:125:in `loop'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application.rb:125:in `run'
from /Users/kdweber89/.rvm/gems/ruby-2.1.5/gems/spring-1.3.6/lib/spring/application/boot.rb:18:in `<top (required)>'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/kdweber89/.rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from -e:1:in `<main>'
My models/install.rb page is
class Install < ActiveRecord::Base
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
end
My Gemfile page is here.
source 'https://rubygems.org'
gem 'rails', '4.2.1'
gem 'haml', '~> 4.0.5'
gem 'bootstrap-sass', '~> 3.2.0.2'
gem "spring-commands-rspec"
gem 'simple_form', '~> 3.0.2'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'devise'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
group :development, :test do
gem 'byebug'
gem 'web-console', '~> 2.0'
gem 'spring', group: :development
end
group :development, :test do
gem 'rspec-rails'
gem 'factory_girl_rails'
end
group :test do
gem 'faker'
gem 'capybara'
gem 'guard-rspec'
gem 'launchy'
end
Any my simple routes are
Rails.application.routes.draw do
devise_for :installs
resources :pins
root "pins#index"
end
Here is my application.rb file
require File.expand_path('../boot', __FILE__)
require 'rails/all'
Bundler.require(*Rails.groups)
module MyApp
class Application < Rails::Application
config.active_record.raise_in_transactional_callbacks = true
end
end
I am honestly not sure what else is needed to show, but i would really appreciate it if someone would take a quick look at it for me.

Make sure, outside of the groups, you have
gem "devise"
the devise_for route helper is provided by the devise gem.
And don't forget to run bundle install to install it in the project

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App doesnt run rake commands when deployed to heroku

in my development are the app works fine but when i deploy to heroku and try to run rake db:migrate to build the database, it aborts and says wrong number of arguments. i have searched all over the web but could not fix it.
here is the error
$ heroku run rake db:migrate
Running rake db:migrate on ⬢ blooming-dusk-86753... up, run.9621 (Free)
rake aborted!
ArgumentError: wrong number of arguments (given 3, expected 2)
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/type/adapter_specific_registry.rb:7:in `add_modifier'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/type.rb:22:in `add_modifier'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_adapters/postgresql_adapter.rb:827:in `<class:PostgreSQLAdapter>'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_adapters/postgresql_adapter.rb:69:in `<module:ConnectionAdapters>'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_adapters/postgresql_adapter.rb:41:in `<module:ActiveRecord>'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_adapters/postgresql_adapter.rb:19:in `<top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `block in require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:259:in `load_dependency'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_adapters/connection_specification.rb:174:in `spec'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/connection_handling.rb:53:in `establish_connection'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/railtie.rb:125:in `block (2 levels) in <class:Railtie>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:69:in `instance_eval'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:69:in `block in execute_hook'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:60:in `with_execution_control'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:65:in `execute_hook'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:50:in `block in run_load_hooks'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:49:in `each'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/lazy_load_hooks.rb:49:in `run_load_hooks'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/base.rb:324:in `<module:ActiveRecord>'
/app/vendor/bundle/ruby/3.0.0/gems/activerecord-5.0.7.2/lib/active_record/base.rb:24:in `<top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `block in require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:259:in `load_dependency'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/app/models/user.rb:1:in `<top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `block in require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:259:in `load_dependency'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:380:in `block in require_or_load'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:37:in `block in load_interlock'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies/interlock.rb:12:in `block in loading'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/concurrency/share_lock.rb:150:in `exclusive'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies/interlock.rb:11:in `loading'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:37:in `load_interlock'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:358:in `require_or_load'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:512:in `load_missing_constant'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:203:in `const_missing'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/inflector/methods.rb:268:in `const_get'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/inflector/methods.rb:268:in `block in constantize'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/inflector/methods.rb:266:in `each'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/inflector/methods.rb:266:in `inject'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/inflector/methods.rb:266:in `constantize'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:584:in `get'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:615:in `constantize'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise.rb:318:in `get'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/mapping.rb:83:in `to'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/mapping.rb:78:in `modules'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/mapping.rb:95:in `routes'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/mapping.rb:162:in `default_used_route'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/mapping.rb:72:in `initialize'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise.rb:354:in `new'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise.rb:354:in `add_mapping'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/rails/routes.rb:243:in `block in devise_for'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/rails/routes.rb:242:in `each'
/app/vendor/bundle/ruby/3.0.0/gems/devise-4.8.1/lib/devise/rails/routes.rb:242:in `devise_for'
/app/config/routes.rb:2:in `block in <top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/actionpack-5.0.7.2/lib/action_dispatch/routing/route_set.rb:391:in `instance_exec'
/app/vendor/bundle/ruby/3.0.0/gems/actionpack-5.0.7.2/lib/action_dispatch/routing/route_set.rb:391:in `eval_block'
/app/vendor/bundle/ruby/3.0.0/gems/actionpack-5.0.7.2/lib/action_dispatch/routing/route_set.rb:373:in `draw'
/app/config/routes.rb:1:in `<top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:287:in `load'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:287:in `block in load'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:259:in `load_dependency'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:287:in `load'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:40:in `each'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:40:in `load_paths'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:16:in `reload!'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:26:in `block in updater'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/file_update_checker.rb:77:in `execute'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:27:in `updater'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application/finisher.rb:119:in `block in <module:Finisher>'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/initializable.rb:30:in `instance_exec'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/initializable.rb:30:in `run'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/initializable.rb:55:in `block in run_initializers'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/initializable.rb:54:in `run_initializers'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application.rb:352:in `initialize!'
/app/config/environment.rb:5:in `<top (required)>'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `block in require'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:259:in `load_dependency'
/app/vendor/bundle/ruby/3.0.0/gems/activesupport-5.0.7.2/lib/active_support/dependencies.rb:293:in `require'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application.rb:328:in `require_environment!'
/app/vendor/bundle/ruby/3.0.0/gems/railties-5.0.7.2/lib/rails/application.rb:448:in `block in run_tasks_blocks'
/app/vendor/bundle/ruby/3.0.0/gems/rake-13.0.6/exe/rake:27:in `<top (required)>'
/app/bin/bundle:3:in `load'
/app/bin/bundle:3:in `<main>'
Tasks: TOP => db:migrate => environment
(See full trace by running task with --trace)
here is my gem file:
source 'https://rubygems.org'
git_source(:github) do |repo_name|
repo_name = "#{repo_name}/#{repo_name}" unless repo_name.include?("/")
"https://github.com/#{repo_name}.git"
end
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.0.7', '>= 5.0.7.2'
# Use sqlite3 as the database for Active Record
gem 'sqlite3', '~> 1.3.13', group: [:development, :test]
# Use postgresql as the database for production
group :production do
gem 'pg', '~> 0.20'
gem 'rails_12factor'
end
# Use Puma as the app server
gem 'puma', '~> 3.0'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
#use bootsrtap for styles
gem 'bootstrap-sass', '~> 3.4.1'
#use font awesom for icons
gem 'font-awesome-sass', '~> 5.15.1'
#use devise for user logins
gem 'devise'
#use paperclip for images upload
gem 'paperclip'
gem 'jquery-rails'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks', '~> 5'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.5'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 3.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platform: :mri
end
group :development do
# Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
gem 'web-console', '>= 3.3.0'
gem 'listen', '~> 3.0.5'
# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
i think the problem is related to sqlite3 vs postgresql(heroku) but i cant seem to fix it.
here is the github link:
https://github.com/fawzi-saab/S-Portfolio
if you are especially creating apps to deploy heroku its better to use postgresql in both development and production. I look into your repo and i think your config/database.yml file needs to be revised in order to connect to postgresql database. You can also check a documentation to deploy an app to heroku here

Error when im trying to run rails c and rails s with bootsnap

I'm starting at rails, and when I try to run rails c and rails s it gets me an error for require. The day before this was working just fine. My rspec is working.
I've already tried to remove bootsnap but didn'twork.
My Gemfile:
ruby '2.4.3'
gem 'rails', '~> 5.2.3'
gem 'sqlite3'
gem 'puma', '~> 3.11'
gem 'bootsnap', '>= 1.1.0', require: false
gem 'sprockets-rails', '~> 3.0.4'
gem 'materialize-sass', '~> 1.0.0'
gem 'devise'
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'rspec-rails', '~> 3.8'
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
gem 'factory_bot_rails'
gem 'faker', :git => 'https://github.com/stympy/faker.git', :branch => 'master'
end
group :test do
gem 'shoulda-matchers'
end
group :development do
gem 'listen', '>= 3.0.5', '< 3.2'
gem 'spring'
gem 'spring-watcher-listen', '~> 2.0.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
The error:
/home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-
1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in
`require': cannot load such file -- rails_helper (LoadError)
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-
1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in
`block in require_with_bootsnap_lfi'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-
1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:89:in
`register'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-
1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:40:in `rescue in require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:26:in `require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
from /home/norton/workspace/IotNotificationManager/spec/factories/devices.rb:1:in `<main>'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:54:in `load'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `block in load'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:285:in `load'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/find_definitions.rb:20:in `block (2 levels) in find_definitions'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/find_definitions.rb:19:in `each'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/find_definitions.rb:19:in `block in find_definitions'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/find_definitions.rb:15:in `each'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/find_definitions.rb:15:in `find_definitions'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot-5.0.2/lib/factory_bot/reload.rb:6:in `reload'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot_rails-5.0.2/lib/factory_bot_rails/reloader.rb:25:in `block in build_reloader'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/evented_file_update_checker.rb:83:in `execute'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/factory_bot_rails-5.0.2/lib/factory_bot_rails/reloader.rb:35:in `block in register_reloader'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:426:in `instance_exec'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:426:in `block in make_lambda'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:198:in `block (2 levels) in halting'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:606:in `block (2 levels) in default_terminator'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:605:in `catch'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:605:in `block in default_terminator'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:199:in `block in halting'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:513:in `block in invoke_before'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:513:in `each'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:513:in `invoke_before'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/callbacks.rb:131:in `run_callbacks'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/reloader.rb:89:in `prepare!'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/application/finisher.rb:63:in `block in <module:Finisher>'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `instance_exec'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/initializable.rb:32:in `run'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/initializable.rb:61:in `block in run_initializers'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:228:in `block in tsort_each'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:347:in `each'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:347:in `call'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:347:in `each_strongly_connected_component'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:226:in `tsort_each'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/tsort.rb:205:in `tsort_each'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/initializable.rb:60:in `run_initializers'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/railties-5.2.3/lib/rails/application.rb:361:in `initialize!'
from /home/norton/workspace/IotNotificationManager/config/environment.rb:5:in `<main>'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `block in require_with_bootsnap_lfi'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require_with_bootsnap_lfi'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/bootsnap-1.4.4/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `block in require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:257:in `load_dependency'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/activesupport-5.2.3/lib/active_support/dependencies.rb:291:in `require'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application.rb:102:in `preload'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application.rb:153:in `serve'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
from /home/norton/.rvm/gems/ruby-2.4.3/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/norton/.rvm/rubies/ruby-2.4.3/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'

No such file to load -- sendgrid-ruby (LoadError)

My rails application is working in production environment, but when I am trying to run it in the development environment its giving an error:
No such file to load -- sendgrid-ruby (LoadError)
/Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:317:in `rescue in depend_on': No such file to load -- sendgrid-ruby (LoadError)
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:312:in `depend_on'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:225:in `require_dependency'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/engine.rb:444:in `block (2 levels) in eager_load!'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/engine.rb:443:in `each'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/engine.rb:443:in `block in eager_load!'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/engine.rb:441:in `each'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/engine.rb:441:in `eager_load!'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/initializable.rb:30:in `run'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/initializable.rb:54:in `each'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/application.rb:136:in `initialize!'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/adityashukla/Downloads/sprint4/config/environment.rb:5:in `<top (required)>'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:251:in `require'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:251:in `block in require'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:236:in `load_dependency'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/activesupport-3.2.16/lib/active_support/dependencies.rb:251:in `require'
from /Users/adityashukla/Downloads/sprint4/config.ru:3:in `block in <main>'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/builder.rb:51:in `instance_eval'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/builder.rb:51:in `initialize'
from /Users/adityashukla/Downloads/sprint4/config.ru:in `new'
from /Users/adityashukla/Downloads/sprint4/config.ru:in `<main>'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/builder.rb:40:in `eval'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/builder.rb:40:in `parse_file'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/server.rb:200:in `app'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/commands/server.rb:46:in `app'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/server.rb:304:in `wrapped_app'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/rack-1.4.7/lib/rack/server.rb:254:in `start'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/commands/server.rb:70:in `start'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/commands.rb:55:in `block in <top (required)>'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/commands.rb:50:in `tap'
from /Users/adityashukla/.rvm/gems/ruby-1.9.3-p551-install/gems/railties-3.2.16/lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
My Gemfile :
source 'http://rubygems.org'
gem 'rails', '3.2.16'
gem 'mysql2', '~> 0.3.17'
group :assets do
gem 'sass-rails', '~> 3.2.3'
gem 'coffee-rails', '~> 3.2.1'
gem 'uglifier', '>= 1.0.3'
gem 'compass-rails'
gem 'therubyracer', :require => 'v8'
end
gem 'sendgrid_ruby', '~> 0.0.6'
gem 'mailgun', '~> 0.8', require: 'mailgun'
gem 'net-ssh', '~> 2.9', '>= 2.9.2'
gem 'jquery-rails'
Here is my application controller.rb file
class ApplicationController < ActionController::Base
require 'mailgun'
require 'sendgrid-ruby'
Kindly help, Thanks in advance.
Your Gemfile specified gem sendgrid_ruby, but the gem name according to https://github.com/sendgrid/sendgrid-ruby/blob/master/sendgrid-ruby.gemspec is sendgrid-ruby (that is, with a hyphen, not an underscore).
Could this be the problem? Maybe try changing the Gemfile's entry to sendgrid-ruby?
I just tried gem installing both -- they both install different gems.
I don't know why it worked in the production environment. Is it a different machine or Ruby version?

Error when starting my rails server: Circular dependency detected while autoloading constant AdminUser (RuntimeError)

I have this problem, which is when i try to start to start the rails server i get this:
=> Booting WEBrick
=> Rails 4.2.0 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:492:in `load_missing_constant': Circular dependency detected while autoloading constant AdminUser (RuntimeError)
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:184:in `const_missing'
from /Users/ludvigsorensen/Desktop/BackyardCoding/app/admin/admin_user.rb:1:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:457:in `load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:457:in `block in load_file'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:647:in `new_constants_in'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:456:in `load_file'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:354:in `require_or_load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:494:in `load_missing_constant'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:184:in `const_missing'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/inflector/methods.rb:261:in `const_get'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/inflector/methods.rb:261:in `block in constantize'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/inflector/methods.rb:259:in `each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/inflector/methods.rb:259:in `inject'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/inflector/methods.rb:259:in `constantize'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:566:in `get'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:597:in `constantize'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise.rb:302:in `get'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/mapping.rb:80:in `to'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/mapping.rb:75:in `modules'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/mapping.rb:92:in `routes'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/mapping.rb:159:in `default_used_route'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/mapping.rb:69:in `initialize'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise.rb:336:in `new'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise.rb:336:in `add_mapping'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/rails/routes.rb:224:in `block in devise_for'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/rails/routes.rb:223:in `each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/devise-3.4.1/lib/devise/rails/routes.rb:223:in `devise_for'
from /Users/ludvigsorensen/Desktop/BackyardCoding/config/routes.rb:3:in `block in <top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:423:in `instance_exec'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:423:in `eval_block'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:401:in `draw'
from /Users/ludvigsorensen/Desktop/BackyardCoding/config/routes.rb:1:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `block in load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:40:in `each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:40:in `load_paths'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:16:in `reload!'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:26:in `block in updater'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/file_update_checker.rb:75:in `call'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/file_update_checker.rb:75:in `execute'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:27:in `updater'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application/finisher.rb:69:in `block in <module:Finisher>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in `run'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:226:in `block in tsort_each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:429:in `each_strongly_connected_component_from'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:347:in `block in each_strongly_connected_component'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `call'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in `each_strongly_connected_component'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:224:in `tsort_each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:203:in `tsort_each'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application.rb:352:in `initialize!'
from /Users/ludvigsorensen/Desktop/backyardcoding/config/environment.rb:5:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `require'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `block in require'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `require'
from /Users/ludvigsorensen/Desktop/backyardcoding/config.ru:3:in `block in <main>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize'
from /Users/ludvigsorensen/Desktop/backyardcoding/config.ru:in `new'
from /Users/ludvigsorensen/Desktop/backyardcoding/config.ru:in `<main>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `eval'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in `new_from_string'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:40:in `parse_file'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:299:in `build_app_and_options_from_config'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:208:in `app'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:61:in `app'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:336:in `wrapped_app'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:139:in `log_to_stdout'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:78:in `start'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:80:in `block in server'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from /Users/ludvigsorensen/Desktop/BackyardCoding/bin/rails:8:in `require'
from /Users/ludvigsorensen/Desktop/BackyardCoding/bin/rails:8:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/client/rails.rb:28:in `load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/client/rails.rb:28:in `call'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/client/command.rb:7:in `call'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/client.rb:28:in `run'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/bin/spring:49:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/binstub.rb:11:in `load'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.4.0/lib/spring/binstub.rb:11:in `<top (required)>'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/ludvigsorensen/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Users/ludvigsorensen/Desktop/backyardcoding/bin/spring:13:in `<top (required)>'
from bin/rails:3:in `load'
from bin/rails:3:in `<main>'
I think this might be related to active_admin btw here is my gem file.....
source 'https://rubygems.org'
gem 'bootstrap-sass', '~> 3.3.5.1'
gem 'devise', '~> 3.4.1'
gem 'toastr-rails'
gem 'activeadmin', github: 'activeadmin'
gem 'paperclip', '~> 4.2.1'
gem 'friendly_id', '~> 5.1.0'
gem 'active_admin-sortable_tree', '~> 0.2.1'
gem 'kaminari', '~> 0.16.3'
gem 'stripe', :git => 'https://github.com/stripe/stripe-ruby'
gem 'mandrill-api', '1.0.52', require: 'mandrill'
gem 'redcarpet', '~> 3.2.3'
gem 'coderay', '~> 1.1.0'
gem 'rails', '4.2.0'
gem 'sqlite3'
gem 'sass-rails', '~> 5.0'
gem 'uglifier', '>= 1.3.0'
gem 'coffee-rails', '~> 4.1.0'
gem 'jquery-rails'
gem 'turbolinks'
gem 'jbuilder', '~> 2.0'
gem 'sdoc', '~> 0.4.0', group: :doc
group :development, :test do
gem 'byebug'
gem 'web-console', '~> 2.0'
gem 'spring'
end
Do you know what i should do?
So i just fixed it myself. This answer helped me out: https://github.com/activeadmin/activeadmin/issues/2334#issuecomment-42626409
I just had to rename my models inside the app/admin directory to plural, fx with admin_user.rb. I renamed app/admin/admin_user.rb to app/admin/admin_users.rb, and then renamed the other files to plural as well.

Undefined method error when running "rails generate rspec:install"

I'm working through chapter 3 of Michael Hartl's tutorial and I tried running "rails generate rspec:install" and I get the error message below.
C:\Sites\sample_app>rails generate rspec:install
DL is deprecated, please use Fiddle
C:/Sites/sample_app/config/environments/development.rb:1:in `<top (required)>':
undefined method `configure' for #<SampleApp::Application:0x380cda8> (NoMethodEr
ror)
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.8/lib/active_support/dependencies.rb:229:in `require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.8/lib/active_support/dependencies.rb:229:in `block in require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.8/lib/active_support/dependencies.rb:214:in `load_dependency'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-
4.0.8/lib/active_support/dependencies.rb:229:in `require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/engine.rb:591:in `block (2 levels) in <class:Engine>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/engine.rb:590:in `each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/engine.rb:590:in `block in <class:Engine>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:30:in `instance_exec'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:150:in `block i
n tsort_each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:183:in `block (
2 levels) in each_strongly_connected_component'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:210:in `block (
2 levels) in each_strongly_connected_component_from'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:219:in `each_st
rongly_connected_component_from'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:209:in `block i
n each_strongly_connected_component_from'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:44:in `each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:44:in `tsort_each_child'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:203:in `each_st
rongly_connected_component_from'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:182:in `block i
n each_strongly_connected_component'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:180:in `each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:180:in `each_st
rongly_connected_component'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/2.0.0/tsort.rb:148:in `tsort_e
ach'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/initializable.rb:54:in `run_initializers'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/application.rb:215:in `initialize!'
from C:/Sites/sample_app/config/environment.rb:5:in `<top (required)>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/application.rb:189:in `require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/application.rb:189:in `require_environment!'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/railties-4.0.8
/lib/rails/commands.rb:44:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
Here is my gemfile
source 'https://rubygems.org'
ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0
gem 'rails', '4.0.8'
group :development, :test do
gem 'sqlite3', '1.3.8'
gem 'rspec-rails', '2.13.1'
end
group :test do
gem 'selenium-webdriver', '2.35.1'
gem 'capybara', '2.1.0'
end
gem 'sass-rails', '4.0.1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
group :doc do
gem 'sdoc', '0.3.20', require: false
end
group :production do
gem 'pg', '0.15.1'
gem 'rails_12factor', '0.0.2'
end
The first line of my config/enivronments/development.rb file
Rails.application.configure do
I looked up some other answers to this question. And they suggested changing the first line in my development.rb file to SampleApp:Application.configure.do; but that just leads to another error 'unitialized constant SampleApp'. So I I changed it back to default.
EDIT: Fixed it to SampleApp::Application, got this cmd line message after running "rails generate rspec:install"
C:\Sites\sample_app>rails generate rspec:install
DL is deprecated, please use Fiddle
create .rspec
create spec
create spec/spec_helper.rb
Thanks, ok change the first line to
SampleApp::Application.configure do
Looks like you missed the double ::.
Credit to this S.O. answer.

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