rails s でサーバーが立ち上がらない

Question

railsのサーバーを立ち上げようとタイトルのコマンドを入力したのですがサーバーが表示されませんでした。
エラーが出ているのかもよく分かりません。

テキスト

rails s
Usage:
rails new APP_PATH [options]

Options:
[--skip-namespace], [--no-skip-namespace] # Skip namespace (affects only isolated applications)
-r, [--ruby=PATH] # Path to the Ruby binary of your choice
# Default: /Users/user/.rbenv/versions/2.5.1/bin/ruby
-m, [--template=TEMPLATE] # Path to some application template (can be a filesystem path or URL)
-d, [--database=DATABASE] # Preconfigure for selected database (options: mysql/postgresql/sqlite3/oracle/frontbase/ibm_db/sqlserver/jdbcmysql/jdbcsqlite3/jdbcpostgresql/jdbc)
# Default: sqlite3
[--skip-yarn], [--no-skip-yarn] # Don't use Yarn for managing JavaScript dependencies
[--skip-gemfile], [--no-skip-gemfile] # Don't create a Gemfile
-G, [--skip-git], [--no-skip-git] # Skip .gitignore file
[--skip-keeps], [--no-skip-keeps] # Skip source control .keep files
-M, [--skip-action-mailer], [--no-skip-action-mailer] # Skip Action Mailer files
-O, [--skip-active-record], [--no-skip-active-record] # Skip Active Record files
[--skip-active-storage], [--no-skip-active-storage] # Skip Active Storage files
-P, [--skip-puma], [--no-skip-puma] # Skip Puma related files
-C, [--skip-action-cable], [--no-skip-action-cable] # Skip Action Cable files
-S, [--skip-sprockets], [--no-skip-sprockets] # Skip Sprockets files
[--skip-spring], [--no-skip-spring] # Don't install Spring application preloader
[--skip-listen], [--no-skip-listen] # Don't generate configuration that depends on the listen gem
[--skip-coffee], [--no-skip-coffee] # Don't use CoffeeScript
-J, [--skip-javascript], [--no-skip-javascript] # Skip JavaScript files
[--skip-turbolinks], [--no-skip-turbolinks] # Skip turbolinks gem
-T, [--skip-test], [--no-skip-test] # Skip test files
[--skip-system-test], [--no-skip-system-test] # Skip system test files
[--skip-bootsnap], [--no-skip-bootsnap] # Skip bootsnap gem
[--dev], [--no-dev] # Setup the application with Gemfile pointing to your Rails checkout
[--edge], [--no-edge] # Setup the application with Gemfile pointing to Rails repository
[--rc=RC] # Path to file containing extra configuration options for rails command
[--no-rc], [--no-no-rc] # Skip loading of extra configuration options from .railsrc file
[--api], [--no-api] # Preconfigure smaller stack for API only apps
-B, [--skip-bundle], [--no-skip-bundle] # Don't run bundle install
[--webpack=WEBPACK] # Preconfigure for app-like JavaScript with Webpack (options: react/vue/angular/elm/stimulus)

Runtime options:
-f, [--force] # Overwrite files that already exist
-p, [--pretend], [--no-pretend] # Run but do not make any changes
-q, [--quiet], [--no-quiet] # Suppress status output
-s, [--skip], [--no-skip] # Skip files that already exist

Rails options:
-h, [--help], [--no-help] # Show this help message and quit
-v, [--version], [--no-version] # Show Rails version number and quit

Description:
The 'rails new' command creates a new Rails application with a default
directory structure and configuration at the path you specify.

You can specify extra command-line arguments to be used every time
'rails new' runs in the .railsrc configuration file in your home directory.

Note that the arguments specified in the .railsrc file don't affect the
defaults values shown above in this help message.

Example:
rails new ~/Code/Ruby/weblog

This generates a skeletal Rails installation in ~/Code/Ruby/weblog.

テキスト

Answer 1

Usageが出てくるということは、そのフォルダにRailsのプロジェクトがありません。

すでにrails newしてプロジェクトを作成しているのであれば、そのフォルダにcdしてからrails sで立ち上げる必要があります。

Comments

[yuuma]

回答ありがとうございます！
$ pwd
/Users/user/Desktop/rails new app
これで合っていますでしょうか？

[maisumakun]

「/Users/user/Desktop/rails new app」全体がpwdの結果、ということでしょうか？

[yuuma]

pwdを入力したら上記の結果が表示されました

[maisumakun]

この状況は、「rails new app」というフォルダを作ってしまった、ということのようですね。

フォルダ名にするのではなく、コマンドとして「rails new」以下を実行してください。

[yuuma]

ありがとうございます。試してみます！

[yuuma]

また別の問題が出てきてしまいました。

[yuuma]

サーバーの立ち上げ出来ました！