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操作系統是Ubuntu 12.04,64位。無法加載railtie後升級到rails 4每ruby.railstutorial.org
新的鐵路。 Ruby相對較新。遵循ruby.railstutorial.org教程，第3章。
本教程已更新爲使用ruby 2.0.0和Rails 4.0.0.rc1。以前，gemfile指定了Rails 3.2.13，並沒有指定Ruby版本。在學習本教程中的最新Gemfile之後，使用ruby 2.0.0和Rails 4.0.0.rc1，運行rails命令時出現以下錯誤。這裏的例子是軌服務器
[email protected]:~/bin/railslearn/sample_app$ rails server
/home/paul/bin/railslearn/sample_app/config/application.rb:7:in `require': cannot load such file -- active_resource/railtie (LoadError)
from /home/paul/bin/railslearn/sample_app/config/application.rb:7:in `<top (required)>'
from /home/paul/.rvm/gems/[email protected]_rails_4_0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `require'
from /home/paul/.rvm/gems/[email protected]_rails_4_0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `block in <top (required)>'
from /home/paul/.rvm/gems/[email protected]_rails_4_0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `tap'
from /home/paul/.rvm/gems/[email protected]_rails_4_0/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
我沒有得到來自Rails: Could not find railties一些想法，下面列出，但尚未找到了解決。
以下是詳細信息。
昨天（在我的瀏覽器中）第3章的Gemfile如下。一切正常。
$ cat Gemfile
source 'https://rubygems.org'
gem 'rails', '3.2.13'
gem 'bootstrap-sass', '2.1'
gem 'bcrypt-ruby', '3.0.1'
gem 'faker', '1.0.1'
gem 'will_paginate', '3.0.3'
gem 'bootstrap-will_paginate', '0.0.6'
gem 'jquery-rails', '2.0.2'
group :development, :test do
gem 'sqlite3', '1.3.5'
gem 'rspec-rails', '2.11.0'
# gem 'guard-rspec', '1.2.1'
# gem 'guard-spork', '1.2.0'
# gem 'childprocess', '0.3.6'
# gem 'spork', '0.9.2'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '3.2.5'
gem 'coffee-rails', '3.2.2'
gem 'uglifier', '1.2.3'
end
group :test do
gem 'capybara', '1.1.2'
gem 'factory_girl_rails', '4.1.0'
gem 'cucumber-rails', '1.2.1', :require => false
gem 'database_cleaner', '0.7.0'
# gem 'launchy', '2.1.0'
# gem 'rb-fsevent', '0.9.1', :require => false
# gem 'growl', '1.0.3'
end
group :production do
gem 'pg', '0.12.2'
end
今天早上教程中的Gemfiles使用了ruby 2.0.0和rails 4.0.0.rc1。我想讓這個設置工作，所以我沒有與更新的教程衝突。新的Gemfile如下。
$ cat Gemfile
source 'https://rubygems.org'
ruby '2.0.0'
gem 'rails', '4.0.0.rc1'
group :development, :test do
gem 'sqlite3', '1.3.7'
gem 'rspec-rails', '2.13.1'
end
group :test do
gem 'selenium-webdriver', '2.0.0'
gem 'capybara', '2.1.0'
end
gem 'sass-rails', '4.0.0.rc1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.0'
gem 'jquery-rails', '2.2.1'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
group :doc do
gem 'sdoc', '0.3.20', require: false
end
group :production do
gem 'pg', '0.15.1'
end
首先，我在Gemfile中改變了紅寶石版本紅寶石「1.9.2」，因爲那是我正在運行，並認爲我有包更新錯誤。我沒有記筆記。
再變紅寶石版本回在Gemfile中「2.0.0」和：
$ rvm install 2.0.0
$ rvm use 2.0.0 --default
$ bundle update
$ bundle install
現在我得到不能與軌道命令加載railtie錯誤。
從Rails: Could not find railties，我嘗試以下
$ gem uninstall railties
Select gem to uninstall:
1. railties-4.0.0.rc1
2. railties-3.2.13
3. All versions
> 2
You have requested to uninstall the gem:
railties-3.2.13
rails-3.2.13 depends on railties (= 3.2.13)
If you remove this gem, these dependencies will not be met.
Y # uninstall railties-3.2.13
仍然得到錯誤
$ gem uninstall rails # to uninstall rails-3.2.13
$ gem uninstall railties # to also uninstall railties-4.0.0.rc1
$ rvm reinstall 2.0.0
$ rvm 2.0.0 --default
$ bundle update # using the Gemfile with ruby 2, rails 4
$ bundle install
$ gem list | grep rail
coffee-rails (4.0.0)
jquery-rails (2.2.1)
rails (4.0.0.rc1)
railties (4.0.0.rc1)
rspec-rails (2.13.1)
sass-rails (4.0.0.rc1)
sprockets-rails (2.0.0.rc4)
仍然得到錯誤
通過原來的設置從教程一章再回到（現在更新爲紅寶石2，導軌4.）
$ rvm use [email protected]_rails_4_0 --create --default
$ gem update --system 2.0.0
$ gem install rails --version 4.0.0.rc1 --no-ri --no-rdoc
$ bundle update # using Gemfile with ruby 2, rails 4
$ bundle install
仍然出現錯誤
ug !!!
任何想法？
涼，只需添加寶石 '的ActiveResource' 中的Gemfile –
哇，謝謝。我有一個類似的問題，但它是activejob： '寶石「activejob」，「4.2.0''加入Gemfile中解決它？ –