Question

我尝试从Rails 2.3.15升级到3.2.17

我做了bundle update，并根据需要更改了控制器语法。

尝试启动服务器并且我收到以下错误，是否有人熟悉此操作？

>> bundle exec script/server

 /opt/boxen/rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems/bundler-1.7.0/lib/bundler/rubygems_integration.rb:266:in `block in replace_gem': can't activate rails (= 2.3.15), already activated rails-3.2.17. Make sure all dependencies are added to Gemfile. (Gem::LoadError)
        from /Users/neo/src/myapp/config/boot.rb:60:in `load_rails_gem'
        from /Users/neo/src/myapp/config/boot.rb:54:in `load_initializer'
        from /Users/neo/src/myapp/config/boot.rb:38:in `run'
        from /Users/neo/src/myapp/boot.rb:11:in `boot!'
        from /Users/neo/src/myapp/config/boot.rb:114:in `<top (required)>'
        from script/server:2:in `require'
        from script/server:2:in `<main>'

我的Gemfile：

source "https://rubygems.org"

#ruby "1.8.7", :group => :staging

gem 'rails', '3.2.17'
gem 'rake', '0.9.2'
gem "aws-s3", :require => "aws/s3"
gem 'authlogic', '~> 2.1.1'
gem 'RedCloth', :require => "redcloth"
gem 'logging'
gem 'panda'
gem 'hoptoad_notifier'
gem 'fastercsv'
gem "comma", "~> 2.0" # specifying -v to add support to rails 2
gem 'pg'
gem 'cloudfront-signer'
gem 'newrelic_rpm'
gem 'thin'
group :development do
  gem 'heroku'
  gem 'taps'
  gem 'sqlite3'
  gem 'pry'
  gem 'rdoc'
end
gem 'heroku_san'

group :test do
  gem 'pg'
end

任何帮助将不胜感激！谢谢

编辑：

使用rails s或bundle exec rails s / server，我只会收到about rails消息，如下所示：

rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                      # Path to the Ruby binary of your choice
                                                         # Default: /opt/boxen/rbenv/versions/1.9.3-p545/bin/ruby
  -b, [--builder=BUILDER]                                # Path to a application builder (can be a filesystem path or URL)
  -m, [--template=TEMPLATE]                              # Path to an application template (can be a filesystem path or URL)
      [--skip-gemfile], [--no-skip-gemfile]              # Don't create a Gemfile
      [--skip-bundle], [--no-skip-bundle]                # Don't run bundle install
  -G, [--skip-git], [--no-skip-git]                      # Skip Git ignores and keeps
  -O, [--skip-active-record], [--no-skip-active-record]  # Skip Active Record files
  -S, [--skip-sprockets], [--no-skip-sprockets]          # Skip Sprockets files
  -d, [--database=DATABASE]                              # Preconfigure for selected database .
.
.

Answer 1

您应该使用

bundle exec rails server

编辑：以前在脚本目录中的所有内容现在都由rails命令管理。在升级时，我发现使用gemset将新宝石与旧宝石隔离起来要容易得多，因为往往需要来回切换，而新的rails命令将无法与旧版本完美搭配。

Answer 2

Rails 3使用新命令语法启动服务器，控制台，脚手架等。

在rails 3 script/* got replaced by script/rails

中

因此，您需要启动服务器，如：

rails s

OR

rails server

无法激活导轨（= 2.3.15），已激活导轨-3.2.17

2 个答案: