WindowsにRails6の環境を構築したいのですができません。

rubyのインストールが終わり、rails6をインストールしました。
バージョンはrubyは2.6.6p146 (2020-03-31 revision 67876) [x64-mingw32]
railsは6.0.2.2です。
カレントディレクトリはC:\Ruby26-x64でその下に

ruby
1rails new myapp

でアプリを作っていこうと思ったのですが、
次のようなエラーが出ました。

ruby
1 　　　exist
2      create  README.md
3      create  Rakefile
4      create  .ruby-version
5      create  config.ru
6      create  .gitignore
7      create  Gemfile
8         run  git init from "."
9Reinitialized existing Git repository in C:/Ruby26-x64/myapp/.git/
10      create  package.json
11       exist  app
12   identical  app/assets/config/manifest.js
13   identical  app/assets/stylesheets/application.css
14   identical  app/channels/application_cable/channel.rb
15   identical  app/channels/application_cable/connection.rb
16   identical  app/controllers/application_controller.rb
17   identical  app/helpers/application_helper.rb
18   identical  app/javascript/channels/consumer.js
19   identical  app/javascript/channels/index.js
20   identical  app/javascript/packs/application.js
21   identical  app/jobs/application_job.rb
22   identical  app/mailers/application_mailer.rb
23   identical  app/models/application_record.rb
24   identical  app/views/layouts/application.html.erb
25   identical  app/views/layouts/mailer.html.erb
26   identical  app/views/layouts/mailer.text.erb
27   identical  app/assets/images/.keep
28   identical  app/controllers/concerns/.keep
29   identical  app/models/concerns/.keep
30       exist  bin
31   identical  bin/rails
32   identical  bin/rake
33   identical  bin/setup
34   identical  bin/yarn
35       exist  config
36   identical  config/routes.rb
37   identical  config/application.rb
38   identical  config/environment.rb
39   identical  config/cable.yml
40   identical  config/puma.rb
41   identical  config/storage.yml
42       exist  config/environments
43   identical  config/environments/development.rb
44   identical  config/environments/production.rb
45   identical  config/environments/test.rb
46       exist  config/initializers
47   identical  config/initializers/application_controller_renderer.rb
48   identical  config/initializers/assets.rb
49   identical  config/initializers/backtrace_silencers.rb
50   identical  config/initializers/content_security_policy.rb
51   identical  config/initializers/cookies_serializer.rb
52      create  config/initializers/cors.rb
53   identical  config/initializers/filter_parameter_logging.rb
54   identical  config/initializers/inflections.rb
55   identical  config/initializers/mime_types.rb
56      create  config/initializers/new_framework_defaults_6_0.rb
57   identical  config/initializers/wrap_parameters.rb
58       exist  config/locales
59   identical  config/locales/en.yml
60      append  .gitignore
61   identical  config/boot.rb
62   identical  config/database.yml
63       exist  db
64   identical  db/seeds.rb
65       exist  lib
66       exist  lib/tasks
67   identical  lib/tasks/.keep
68       exist  lib/assets
69   identical  lib/assets/.keep
70       exist  log
71   identical  log/.keep
72       exist  public
73   identical  public/404.html
74   identical  public/422.html
75   identical  public/500.html
76   identical  public/apple-touch-icon-precomposed.png
77   identical  public/apple-touch-icon.png
78   identical  public/favicon.ico
79   identical  public/robots.txt
80       exist  tmp
81   identical  tmp/.keep
82       exist  tmp/pids
83   identical  tmp/pids/.keep
84       exist  tmp/cache
85       exist  tmp/cache/assets
86       exist  vendor
87   identical  vendor/.keep
88       exist  test/fixtures
89   identical  test/fixtures/.keep
90       exist  test/fixtures/files
91   identical  test/fixtures/files/.keep
92       exist  test/controllers
93   identical  test/controllers/.keep
94       exist  test/mailers
95   identical  test/mailers/.keep
96       exist  test/models
97   identical  test/models/.keep
98       exist  test/helpers
99   identical  test/helpers/.keep
100       exist  test/integration
101   identical  test/integration/.keep
102   identical  test/channels/application_cable/connection_test.rb
103   identical  test/test_helper.rb
104       exist  test/system
105   identical  test/system/.keep
106   identical  test/application_system_test_case.rb
107       exist  storage
108   identical  storage/.keep
109       exist  tmp/storage
110   identical  tmp/storage/.keep
111      remove  config/initializers/cors.rb
112      remove  config/initializers/new_framework_defaults_6_0.rb
113         run  bundle install
114Fetching gem metadata from https://rubygems.org/.............
115Fetching gem metadata from https://rubygems.org/.
116Resolving dependencies........
117Using rake 13.0.1
118Using concurrent-ruby 1.1.6
119Using i18n 1.8.2
120Using minitest 5.14.0
121Using thread_safe 0.3.6
122Using tzinfo 1.2.7
123Using zeitwerk 2.3.0
124Using activesupport 6.0.2.2
125Using builder 3.2.4
126Using erubi 1.9.0
127Using mini_portile2 2.4.0
128Using nokogiri 1.10.9 (x64-mingw32)
129Using rails-dom-testing 2.0.3
130Using crass 1.0.6
131Using loofah 2.4.0
132Using rails-html-sanitizer 1.3.0
133Using actionview 6.0.2.2
134Using rack 2.2.2
135Using rack-test 1.1.0
136Using actionpack 6.0.2.2
137Using nio4r 2.5.2
138Using websocket-extensions 0.1.4
139Using websocket-driver 0.7.1
140Using actioncable 6.0.2.2
141Using globalid 0.4.2
142Using activejob 6.0.2.2
143Using activemodel 6.0.2.2
144Using activerecord 6.0.2.2
145Using mimemagic 0.3.4
146Using marcel 0.3.3
147Using activestorage 6.0.2.2
148Using mini_mime 1.0.2
149Using mail 2.7.1
150Using actionmailbox 6.0.2.2
151Using actionmailer 6.0.2.2
152Using actiontext 6.0.2.2
153Using public_suffix 4.0.3
154Using addressable 2.7.0
155Using bindex 0.8.1
156Using msgpack 1.3.3 (x64-mingw32)
157Using bootsnap 1.4.6
158Using bundler 2.1.4
159Using byebug 11.1.1
160Using regexp_parser 1.7.0
161Using xpath 3.2.0
162Using capybara 3.32.0
163Using childprocess 3.0.0
164Using ffi 1.12.2 (x64-mingw32)
165Using jbuilder 2.10.0
166Using method_source 1.0.0
167Using puma 4.3.3
168Using rack-proxy 0.6.5
169Using thor 1.0.1
170Using railties 6.0.2.2
171Using sprockets 4.0.0
172Using sprockets-rails 3.2.1
173Using rails 6.0.2.2
174Using rubyzip 2.3.0
175Using sassc 2.2.1 (x64-mingw32)
176Using tilt 2.0.10
177Using sassc-rails 2.1.2
178Using sass-rails 6.0.0
179Using selenium-webdriver 3.142.7
180Fetching sqlite3 1.4.2
181Installing sqlite3 1.4.2 with native extensions
182エラー: mingw32: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
183エラー: mingw64: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
184エラー: msys: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
185エラー: データベース 'mingw32' は無効です (無効または破損したデータベース (PGP 鍵))
186エラー: データベース 'mingw64' は無効です (無効または破損したデータベース (PGP 鍵))
187エラー: データベース 'msys' は無効です (無効または破損したデータベース (PGP 鍵))
188Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
189
190current directory:
191C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/sqlite3-1.4.2/ext/sqlite3
192C:/Ruby26-x64/bin/ruby.exe -I C:/Ruby26-x64/lib/ruby/2.6.0 -r
193./siteconf20200405-13380-smdirj.rb extconf.rb
194checking for sqlite3.h... no
195sqlite3.h is missing. Install SQLite3 from http://www.sqlite.org/ first.
196*** extconf.rb failed ***
197Could not create Makefile due to some reason, probably lack of necessary
198libraries and/or headers.  Check the mkmf.log file for more details.  You may
199need configuration options.
200
201Provided configuration options:
202        --with-opt-dir
203        --without-opt-dir
204        --with-opt-include
205        --without-opt-include=${opt-dir}/include
206        --with-opt-lib
207        --without-opt-lib=${opt-dir}/lib
208        --with-make-prog
209        --without-make-prog
210        --srcdir=.
211        --curdir
212        --ruby=C:/Ruby26-x64/bin/$(RUBY_BASE_NAME)
213        --with-sqlcipher
214        --without-sqlcipher
215        --with-sqlite3-config
216        --without-sqlite3-config
217        --with-pkg-config
218        --without-pkg-config
219        --with-sqlcipher
220        --without-sqlcipher
221        --with-sqlite3-dir
222        --without-sqlite3-dir
223        --with-sqlite3-include
224        --without-sqlite3-include=${sqlite3-dir}/include
225        --with-sqlite3-lib
226        --without-sqlite3-lib=${sqlite3-dir}/lib
227
228To see why this extension failed to compile, please check the mkmf.log which can
229be found here:
230
231C:/Ruby26-x64/lib/ruby/gems/2.6.0/extensions/x64-mingw32/2.6.0/sqlite3-1.4.2/mkmf.log
232
233extconf failed, exit code 1
234
235Gem files will remain installed in
236C:/Ruby26-x64/lib/ruby/gems/2.6.0/gems/sqlite3-1.4.2 for inspection.
237Results logged to
238C:/Ruby26-x64/lib/ruby/gems/2.6.0/extensions/x64-mingw32/2.6.0/sqlite3-1.4.2/gem_make.out
239
240An error occurred while installing sqlite3 (1.4.2), and Bundler cannot continue.
241Make sure that `gem install sqlite3 -v '1.4.2' --source 'https://rubygems.org/'`
242succeeds before bundling.
243
244In Gemfile:
245  sqlite3
246         run  bundle binstubs bundler
247Could not find gem 'sqlite3 (~> 1.4) x64-mingw32' in any of the gem sources
248listed in your Gemfile.
249       rails  webpacker:install
250Could not find gem 'sqlite3 (~> 1.4) x64-mingw32' in any of the gem sources listed in your Gemfile.
251Run `bundle install` to install missing gems.
252

エラー文がたくさんありどれから解決して良いのかわかりません。
また解決の仕方もわかりません。
どなたか詳しい方教えていただけませんか。

行動規範の内容に同意します

回答2件

ベストアンサー

直接の回答ではありませんが、そもそも論としてWindowsに直接Rails環境を構築すること自体が、あまりおすすめできません。

特に、サーバでの実運用を考えるなら、サーバは大抵の場合Unix系ですので、その練習にもなるようUnix系の環境（WSL、仮想マシンなど）を構築して、その上でRails環境を作ることをおすすめします。

投稿2020/04/05 03:25

maisumakun

総合スコア146018

エラーの元はこれです。

plain
1Installing sqlite3 1.4.2 with native extensions
2エラー: mingw32: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
3エラー: mingw64: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
4エラー: msys: "Alexey Pavlov (Alexpux) <alexpux@gmail.com>" の署名は信頼されていません
5エラー: データベース 'mingw32' は無効です (無効または破損したデータベース (PGP 鍵))
6エラー: データベース 'mingw64' は無効です (無効または破損したデータベース (PGP 鍵))
7エラー: データベース 'msys' は無効です (無効または破損したデータベース (PGP 鍵))
8Gem::Ext::BuildError: ERROR: Failed to build gem native extension.