railsにbootstrapを導入したい

railsにbootstrapを導入したいのですが上手くいきません、、
gemfileに
gem 'bootstrap', '>= 4.3.1'
gem 'jquery-rails'
を記述し、
application.cssをapplication.scssに変更後、　@import "bootstrap";と記述しました。
またapplication.jsの　//= require require_tree .の前に
//= require jquery3
//= require popper
//= require bootstrap-sprockets
を記述しました。
その後rails sを実行するとエラーがおきます。
なにが原因なのでしょうか、？
ちなみにhttp://localhost:3000/でアクセスするとサーバーが立ち上がるんですが、http://localhost:3000/pages/homeでアクセスするとエラーになります。

#コンソール
C:\Users\sinta\techgram>rails s
=> Booting Puma
=> Rails 5.2.3 application starting in development
=> Run rails server -h for more startup options
*** SIGUSR2 not implemented, signal based restart unavailable!
*** SIGUSR1 not implemented, signal based restart unavailable!
*** SIGHUP not implemented, signal based logs reopening unavailable!
Puma starting in single mode...

Version 3.12.1 (ruby 2.6.3-p62), codename: Llamas in Pajamas
Min threads: 5, max threads: 5
Environment: development
Listening on tcp://localhost:3000

Use Ctrl-C to stop
Started GET "/" for ::1 at 2019-05-31 23:09:57 +0900
Processing by PagesController#home as HTML
Rendering pages/home.html.erb within layouts/application
Rendered pages/home.html.erb within layouts/application (3.8ms)
Completed 500 Internal Server Error in 1430ms (ActiveRecord: 0.0ms)

ActionView::Template::Error (identifier '(function(opts, pluginOpts) {return eval(process' undefined):
5: <%= csrf_meta_tags %>
6: <%= csp_meta_tag %>
7:
8: <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
9: <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
10: </head>
11:

(execjs):1
app/views/layouts/application.html.erb:8:in `_app_views_layouts_application_html_erb__171988952_47761580'
#routes.rb
Rails.application.routes.draw do
get 'pages/home'=>'pages#home'
end
#pages_controller.rb
class PagesController < ApplicationController
def home
end
end
#home.html.erb