未初始化的常量 TZInfo::InvalidTimezoneIdentifier (NameError) - Rails 4答案

【问题标题】：Uninitialized Constant TZInfo::InvalidTimezoneIdentifier (NameError) - Rails 4未初始化的常量 TZInfo::InvalidTimezoneIdentifier (NameError) - Rails 4
【发布时间】：2013-12-20 23:18:42
【问题描述】：

我正在将 Rails 3.2 应用程序升级到 Rails 4.1。每当我尝试启动控制台或服务器时，都会遇到此错误：

C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.1.0.beta1/lib/active_support
/core_ext/time/zones.rb:70:in `rescue in find_zone!': uninitialized constant TZI
nfo::InvalidTimezoneIdentifier (NameError)
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.1.0.beta1/lib/a
ctive_support/core_ext/time/zones.rb:55:in `find_zone!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.1.0.beta1/lib/a
ctive_support/railtie.rb:20:in `block in <class:Railtie>'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
initializable.rb:30:in `instance_exec'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
initializable.rb:30:in `run'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
initializable.rb:55:in `block in run_initializers'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:150:in `block in tsort_each'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:183:in `block (2 levels) in each
_strongly_connected_component'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:219:in `each_strongly_connected_
component_from'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:182:in `block in each_strongly_c
onnected_component'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:180:in `each'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:180:in `each_strongly_connected_
component'
        from C:/Ruby200/lib/ruby/2.0.0/tsort.rb:148:in `tsort_each'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
initializable.rb:54:in `run_initializers'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
application.rb:285:in `initialize!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
railtie.rb:194:in `public_send'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/railties-4.1.0.beta1/lib/rails/
railtie.rb:194:in `method_missing'
        from C:/sites/RailsApp/config/environment.rb:5:in `<top (required)>'
        ...

不太确定是什么原因造成的，想知道是否有人有任何建议。我在 irb 中尝试过，没有遇到任何问题（应该出现错误）：

irb(main):001:0> require 'active_support/core_ext/time/zones'
=> true
irb(main):002:0> Time.find_zone!('good')
ArgumentError: Invalid Timezone: f
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.1.0.beta1/lib/a
ctive_support/core_ext/time/zones.rb:71:in `rescue in find_zone!'
        from C:/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-4.1.0.beta1/lib/a
ctive_support/core_ext/time/zones.rb:55:in `find_zone!'
        from (irb):3
        from C:/Ruby200/bin/irb:12:in `<main>'

Gemfile 包括：

ruby "2.0.0"
gem "rails", "~> 4.1.0.beta1"
gem 'tzinfo-data'

编辑（更多信息）：似乎包含 gem 'tzinfo-data' 可能会搞砸一些事情？当 gem 位于 gemfile 中时，在 environment.rb 中的 RailsApp::Application.initialize! 调用期间似乎不需要“tzinfo”。然而，当 gem 被移除时，require 正在发生。

【问题讨论】：

标签： ruby-on-rails activesupport

【解决方案1】：

在environment.rb 中初始化应用程序之前需要tzinfo gem 为我解决了这个问题。并不能真正解释一切，但似乎有效

# adding this fixes the issue
require 'tzinfo'

# Initialize the rails application
RailsApp::Application.initialize!

编辑：似乎这是Rails的问题： https://github.com/rails/rails/issues/13553

【讨论】：

【解决方案2】：

这对我有用：

gem uninstall tzinfo
#select 'All versions'
gem install tzinfo
rails c

【讨论】：