无法启动 Rails [英] Can't start Rails

问题描述

我更新了 Rails 和 Ruby:

I updated Rails and Ruby:

$ ruby -v
ruby 2.1.5p273 (2014-11-13 revision 48405) [x86_64-darwin14.0]
$ rails -v
Rails 4.1.8

现在当我执行 rails server 我得到这个:

Now when I execute rails server I get this:

$ rails server
Usage:
  rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                   # Path to the Ruby binary of your choice
                                                      # Default: /Users/guilherme/.rbenv/versions/2.1.5/bin/ruby
  -m, [--template=TEMPLATE]                           # Path to some application template (can be a filesystem path or URL)
  [--skip-gemfile], [--no-skip-gemfile]               # Don't create a Gemfile
  -B, [--skip-bundle], [--no-skip-bundle]             # Don't run bundle install
  { ... }

我必须做什么才能启动 Rails?

What I have to do to start Rails?

推荐答案

除非您在项目目录中，否则无法启动 Rails 服务器.

You can not start the Rails server unless you're in your project directory.

假设您正在处理 myapp 项目.您必须在命令行上移动到该项目目录，然后运行 ​​Rails 服务器.

Suppose if you're working on myapp project. You've to move to that project directory on your command line and then run the Rails server.

示例:假设您尚未创建 Rails 应用程序:

Example: Assuming you didn't create the Rails app yet:

$> rails new myapp
$> cd myapp

现在使用以下两个命令之一启动 Rails 服务器:

Now start the Rails server with either of these two commands:

$> rails server

或:

$> rails s

这篇关于无法启动 Rails的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！