运行"rails s"时遇到问题

Question

运行"rails s"时遇到问题

我rails s在ubuntu中运行时遇到问题.当我键入rails s它不启动服务器,但它给我这个消息:

kyala@ubuntu:~/depot$ rails s

Usage:
  rails new APP_PATH [options]

Options:

-r, [--ruby=PATH]           # Path to the Ruby binary of your choice
                              # Default: /home/kyala/.rvm/rubies/ruby-1.9.2-p290/bin/ruby

-d, [--database=DATABASE]   # Preconfigure for selected database (options: mysql/oracle/postgresql/sqlite3/frontbase/ibm_db)enter code here
                              # Default: sqlite3

 -b, [--builder=BUILDER]     # Path to an application builder (can be a filesystem path or URL)

-m, [--template=TEMPLATE]   # Path to an application template (can be a filesystem path or URL)
      [--dev]                 # Setup the application with Gemfile pointing to your Rails 

checkout
      [--edge]                # Setup the application with Gemfile pointing to Rails 

repository

[--skip-gemfile]        # Don't create a Gemfile

 -O, [--skip-active-record]  # Skip Active Record files

 -T, [--skip-test-unit]      # Skip Test::Unit files

 -J, [--skip-prototype]      # Skip Prototype files

 -G, [--skip-git]            # Skip Git ignores and keeps


Runtime options:

-f, [--force]    # Overwrite files that already exist

-p, [--pretend]  # Run but do not make any changes

 -q, [--quiet]    # Supress status output

 -s, [--skip]     # Skip files that already exist


Rails options:

 -v, [--version]  # Show Rails version number and quit

  -h, [--help]     # Show this help message and quit


Description:

  The 'rails new' command creates a new Rails application with a default

 directory structure and configuration at the path you specify.

Example:

  rails new ~/Code/Ruby/weblog


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

See the README in the newly created application to get going.

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