升级到Rails 4.2后,我很兴奋地想尝试新集成的Web控制台,但是出现了一些问题。
在Rails 4.2的发布说明中,它提到:“生成于Rails 4.2的新应用程序默认带有Web控制台gem。”
由于我已经升级到4.2,我认为这意味着我仍然需要在我的Gemfile中指定它。如果没有将它添加到我的Gemfile中,rails会给我“undefined local variable or method 'console'”,因此我认为确实是这样的。
一旦我将gem 'web-console', '~> 2.0'添加到Gemfile中,并运行rails服务器,我现在得到:
在Rails 4.2的发布说明中,它提到:“生成于Rails 4.2的新应用程序默认带有Web控制台gem。”
由于我已经升级到4.2,我认为这意味着我仍然需要在我的Gemfile中指定它。如果没有将它添加到我的Gemfile中,rails会给我“undefined local variable or method 'console'”,因此我认为确实是这样的。
一旦我将gem 'web-console', '~> 2.0'添加到Gemfile中,并运行rails服务器,我现在得到:
/home/kevin/.rvm/gems/ruby-2.1.5/gems/binding_of_caller-0.7.3.pre1/lib/binding_of_caller/mri2.rb:21:in `callers': uninitialized constant RubyVM::DebugInspector (NameError)
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/better_errors-2.0.0/lib/better_errors/exception_extension.rb:7:in `set_backtrace'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in `require'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in `each'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in `block in require'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in `each'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in `require'
from /home/kevin/.rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler.rb:133:in `require'
from /home/kevin/workspace/applications/ems-heroes/config/application.rb:6:in `<top (required)>'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `require'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:78:in `block in server'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/kevin/.rvm/gems/ruby-2.1.5/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
我在谷歌上搜索了一下,但没有找到太多有用的信息。非常感谢您给出的任何建议。
谢谢!