Web应用程序无法启动未定义的方法

当我安装管理平台-3.3 & 3.4，我没有得到管理平台页面我面对这个错误Web应用程序无法启动未定义的方法

Web application could not be started 
undefined method `require_sudo_mode' for EmailAddressesController:Class (NoMethodError) 
    /usr/share/redmine/app/controllers/email_addresses_controller.rb:21:in `<class:EmailAddressesController>' 
    /usr/share/redmine/app/controllers/email_addresses_controller.rb:18:in `<top (required)>' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `require' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `block in require' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:236:in `load_dependency' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:251:in `require' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:359:in `require_or_load' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:313:in `depend_on' 
    /usr/lib/ruby/vendor_ruby/active_support/dependencies.rb:225:in `require_dependency' 
    /usr/lib/ruby/vendor_ruby/rails/engine.rb:444:in `block (2 levels) in eager_load!' 
    /usr/lib/ruby/vendor_ruby/rails/engine.rb:443:in `each' 
    /usr/lib/ruby/vendor_ruby/rails/engine.rb:443:in `block in eager_load!' 
    /usr/lib/ruby/vendor_ruby/rails/engine.rb:441:in `each' 
    /usr/lib/ruby/vendor_ruby/rails/engine.rb:441:in `eager_load!' 
    /usr/lib/ruby/vendor_ruby/rails/application/finisher.rb:53:in `block in <module:Finisher>' 
    /usr/lib/ruby/vendor_ruby/rails/initializable.rb:30:in `instance_exec' 
    /usr/lib/ruby/vendor_ruby/rails/initializable.rb:30:in `run' 
    /usr/lib/ruby/vendor_ruby/rails/initializable.rb:55:in `block in run_initializers' 
    /usr/lib/ruby/vendor_ruby/rails/initializable.rb:54:in `each' 
    /usr/lib/ruby/vendor_ruby/rails/initializable.rb:54:in `run_initializers' 
    /usr/lib/ruby/vendor_ruby/rails/application.rb:136:in `initialize!' 
    /usr/lib/ruby/vendor_ruby/rails/railtie/configurable.rb:30:in `method_missing' 
    /usr/share/redmine/config/environment.rb:14:in `<top (required)>' 
    config.ru:3:in `require' 
    config.ru:3:in `block in <main>' 
    /usr/lib/ruby/vendor_ruby/rack/builder.rb:51:in `instance_eval' 
    /usr/lib/ruby/vendor_ruby/rack/builder.rb:51:in `initialize' 
    config.ru:1:in `new' 
    config.ru:1:in `<main>' 
    /usr/share/passenger/helper-scripts/rack-preloader.rb:112:in `eval' 
    /usr/share/passenger/helper-scripts/rack-preloader.rb:112:in `preload_app' 
    /usr/share/passenger/helper-scripts/rack-preloader.rb:158:in `<module:App>' 
    /usr/share/passenger/helper-scripts/rack-preloader.rb:29:in `<module:PhusionPassenger>' 
    /usr/share/passenger/helper-scripts/rack-preloader.rb:28:in `<main>' 
Application root /usr/share/redmine Environment (value of RAILS_ENV, RACK_ENV, WSGI_ENV and PASSENGER_ENV) production Ruby interpreter 
command /usr/bin/ruby.. .... ..

你能给我点建议？

来源

2017-10-17 sriram

也许它与这个[Redmine.org上的问题]（https://www.redmine.org/issues/24831） – spickermann

请确保您与数据库连接，并且您是否遗漏了所需的宝石。

require_sudo_mode。如果错误是因为这个，你肯定会错过这个宝石。

这种类型的错误出现在数据库没有连接的问题下。如果你确定这将是start.Thanks ..！

来源

2017-10-17 09:19:10

'require_sudo_mode'不是宝石，而是由Redmine提供的方法。它与失败的数据库连接无关。相反，它（如@spickermann正确识别）报告的Redmine问题可能是由某些环境条件引起的。 –

Web应用程序无法启动未定义的方法

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