rails6 でjavascriptが動かない

前提・実現したいこと

rails6でサイトを作成しています。javascriptを導入しようとしたのですが、読み込んでくれません。
コンソールで確認したところエラーが発生していました。

発生している問題・エラーメッセージ

turbolinks.js:1034 You are loading Turbolinks from a <script> element inside the <body> element. This is probably not what you meant to do!

Load your application’s JavaScript bundle inside the <head> element instead. <script> elements in <body> are evaluated with each page change.

For more information, see: https://github.com/turbolinks/turbolinks#working-with-script-elements

——
Suppress this warning by adding a `data-turbolinks-suppress-warning` attribute to: <script src="/packs/js/application-bbe9c4a129ab949e0636.js" data-turbolinks-track="reload"></script>

該当のソースコード

html
1<!DOCTYPE html>
2<html>
3<div class="container">
4  <head>
5  <meta charset="utf-8">
6    <title>Yakubutu</title>
7    <%= csrf_meta_tags %>
8    <%= csp_meta_tag %>
9
10    <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
11
12    <script src="/packs/js/application-bbe9c4a129ab949e0636.js" data-turbolinks-track="reload"></script>
13
14    <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
15  </head>
16
17  <body>
18    <div class="wrapper">
19
20      <header>
21        <div class="container header-title">
22          <div class="navbar navbar-expand-sm">
23            <a class="eden" href="/">Hazard Drug</a>
24            <div class="collapse navbar-collaps" id="navbarNav">
25              　　 <% if user_signed_in? %>
26              <!-- ユーザーがログインしているか調べる -->
27              <!-- <ul class="navbar-nav ml-auto"> -->
28              <!-- ユーザーがログインしていた時の処理 -->
29              <li class="nav-item">
30                <%= link_to "ABOUT", "/posts/about" %>
31              </li>
32              <li class="nav-item">
33                <%= link_to "DASHBOARD", "/posts/dashboard" %>
34              </li>
35              <li class="nav-item">
36                <%= link_to "LESSONS", "/posts/lessons" %>
37              </li>
38              <li class="nav-item">
39                <%= link_to "PROFILE", "/posts/profile" %>
40              </li>
41              <li class="nav-item">
42                <%= link_to "SETTING",  edit_user_registration_path %>
43                <!-- ログアウトをする -->
44              </li>
45              <li class="nav-item">
46                <%= link_to "LOGOUT", destroy_user_session_path, method: :delete %>
47                <!-- ログアウトをする -->
48              </li>
49              <!-- </ul> -->
50              <% else %>
51              <!-- <ul> -->
52              <!-- ユーザーがログインしていなかった時の処理 -->
53              <li class="nav-item">
54                <%= link_to "LOGIN", new_user_session_path, class: 'post' %>
55                <!-- ログイン画面に移行する -->
56              </li>
57              <li class="nav-item">
58                <%= link_to "SIGNUP", new_user_registration_path, class: 'post' %>
59                <!-- 新規登録画面に移行する -->
60              </li>
61              <li class="nav-item">
62                <%= link_to "ABOUT", "/posts/about" %>
63              </li>
64
65              <!-- </ul> -->
66              <% end %>
67            </div>
68          </div>
69        </div>
70
71      </header>
72      <div class="container">
73        <%= yield %>
74      </div>
75
76      <footer>
77        <p> @2020 tetsuya</p>
78      </footer>
79
80    </div>
81
82  </body>
83</html>
84

Gemfile
1source 'https://rubygems.org'
2git_source(:github) { |repo| "https://github.com/#{repo}.git" }
3
4ruby '2.6.3'
5
6# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
7gem 'rails', '~> 6.0.2', '>= 6.0.2.2'
8# Use sqlite3 as the database for Active Record
9gem 'sqlite3', '~> 1.4'
10# Use Puma as the app server
11gem 'puma', '~> 4.1'
12# Use SCSS for stylesheets
13gem 'sass-rails', '>= 6'
14# Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
15gem 'webpacker', '~> 4.0'
16# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
17gem 'turbolinks', '~> 5'
18# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
19gem 'jbuilder', '~> 2.7'
20# Use Redis adapter to run Action Cable in production
21# gem 'redis', '~> 4.0'
22# Use Active Model has_secure_password
23# gem 'bcrypt', '~> 3.1.7'
24
25# Use Active Storage variant
26# gem 'image_processing', '~> 1.2'
27
28# Reduces boot times through caching; required in config/boot.rb
29gem 'bootsnap', '>= 1.4.2', require: false
30
31group :development, :test do
32  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
33  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
34end
35
36group :development do
37  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
38  gem 'web-console', '>= 3.3.0'
39  gem 'listen', '>= 3.0.5', '< 3.2'
40  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
41  gem 'spring'
42  gem 'spring-watcher-listen', '~> 2.0.0'
43end
44
45group :test do
46  # Adds support for Capybara system testing and selenium driver
47  gem 'capybara', '>= 2.15'
48  gem 'selenium-webdriver'
49  # Easy installation and use of web drivers to run system tests with browsers
50  gem 'webdrivers'
51end
52
53# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
54gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
55
56gem 'devise'
57
58gem 'bootstrap', '~> 4.3.1'
59gem 'jquery-rails'
60