Ruby on rails 加载Rails应用程序时如何使用引导

我试图将引导加载到Rails应用程序中，但它不起作用，它的加载方式与普通HTML类似。这是我的档案：

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.7.0'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 5.2.0'
# Use sqlite3 as the database for Active Record

# Use Puma as the app server
gem 'puma', '~> 3.11'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'mini_racer', platforms: :ruby
gem 'jquery-rails'
gem 'bootstrap-sass'

# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.2'
# 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', '~> 4.0'
# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'
gem 'sdoc',         '0.4.0', group: :doc

# Use ActiveStorage variant
# gem 'mini_magick', '~> 4.8'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.1.0', require: false

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end

group :development do
gem 'sqlite3',     '1.3.9'
  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # 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

group :test do
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara', '>= 2.15', '< 4.0'
  gem 'selenium-webdriver'
  # Easy installation and use of chromedriver to run system tests with Chrome
  gem 'chromedriver-helper'
  gem 'minitest-reporters'
  gem 'mini_backtrace'
  gem 'guard-minitest'
end

group :production do
  gem 'pg',             '0.18.1'
  gem 'rails_12factor', '0.0.2'
end

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

application.css.scss是：

@import "bootstrap-sprockets"; 
@import "bootstrap";

---

在railstutorial.org上，它创建了一个新的custom.css.scss应用程序，它有一个application.css文件，而不是sass文件，但它也不工作。

您将“application”拼错为“aplication”。检查应用程序是否使用了正确的拼写。从CDN加载引导程序要比这样做容易一些。该文件不应称为

application.json

。它应该被称为

application.js

application.json不会包含在加载到页面的javascript中。该文件在应用程序中的位置，如确切路径？你能在你的应用程序中检查拼写吗？

//= require jquery
//= require bootstrap-sprockets
//= require rails-ujs
//= require turbolinks
//= require_tree .

@import "bootstrap-sprockets"; 
@import "bootstrap";