无法为我的应用程序运行rails服务器

Question

我正在尝试运行一个从互联网下载的项目，它是ruby on rails，我得到了以下错误

Traceback (most recent call last):
        4: from bin/rails:3:in `<main>'
        3: from bin/rails:3:in `load'
        2: from C:/Users/Amira/canvas/bin/spring:10:in `<top (required)>'
        1: from C:/Users/Amira/canvas/bin/spring:10:in `read'
C:/Users/Amira/canvas/bin/spring:10:in `read': No such file or directory @ rb_sysopen - C:/Users/Amira/canvas/Gemfile.lock (Errno::ENOENT)

在文件中编写的代码如下所示

#!/usr/bin/env ruby

# This file loads spring without using Bundler, in order to be fast.
# It gets overwritten when you run the `spring binstub` command.

unless defined?(Spring)
  require 'rubygems'
  require 'bundler'

  if (match = Bundler.default_lockfile.read.match(/^GEM$.*?^    (?:  )*spring \((.*?)\)$.*?^$/m))
    Gem.paths = { 'GEM_PATH' => [Bundler.bundle_path.to_s, *Gem.path].uniq.join(Gem.path_separator) }
    gem 'spring', match[1]
    require 'spring/binstub'
  end
end

这是一个开源项目，我是新来的rails，有人能帮我吗？

编辑

Gemfile内容

# What have they done to the Gemfile???
#
# Relax. Breathe deep. All the gems are still there; they're just loaded in various files in Gemfile.d/
# This allows us to require gems locally that we might not want to commit to our public repo. We can maintain
# a customized list of gems for development and debuggery, without affecting our ability to merge with canvas-lms
#
# NOTE: this file has to use 1.8.7 hash syntax to not raise a parser exception on 1.8.7
#
# NOTE: some files in Gemfile.d/ will have certain required gems indented. While this may seem arbitrary,
# it actually has semantic significance. An indented gem required in Gemfile is a gem that is NOT
# directly used by Canvas, but required by a gem that is used by Canvas. We lock into specific versions of
# these gems to prevent regression, and the indentation serves to alert us to the relationship between the gem and canvas-lms
source 'https://rubygems.org/'


Dir[File.join(File.dirname(__FILE__), 'gems/plugins/*/Gemfile.d/_before.rb')].each do |file|
  eval(File.read(file), nil, file)
end

require File.expand_path("../config/canvas_rails_switcher", __FILE__)

Dir.glob(File.join(File.dirname(__FILE__), 'Gemfile.d', '*.rb')).sort.each do |file|
  eval(File.read(file), nil, file)
end

Answer 1

Gemfile通常指定依赖项(应用程序需要的其他代码)。您所研究的项目似乎使用了稍微复杂一些的设置。

通常情况下，它的工作方式大致如下:一旦依赖项通过绑定程序(命令bundle或更显式的bundle install)安装，就会在其旁边放置一个Gemfile.lock，以列出实际使用的已安装依赖项的版本。

两个外卖：

dependencies.

• read

• 使用bundle ( gem称为bundler)来仔细安装项目的自述文件。如果它没有关于安装的说明，如果项目有这样做的方法，就创建一个问题。如果您是超级友好或正常的，并且项目是开放的和健康的，请为自述程序创建一个拉请求，其中描述如何安装该应用程序.

。

编辑这听起来可能有点傲慢，我没有偷看细节。我猜你跟踪了https://github.com/instructure/canvas-lms/wiki/Quick-Start。canvas项目使用的设置比典型的Rails应用程序稍微复杂一些。我相信你应该特别要求帆布安装的帮助(编辑你的问题)。