Rails生成不起作用

Question

我是rails的新手，必须支持新项目，对这个愚蠢的问题感到抱歉。

我需要在主站点上创建新页面，而不是在管理面板中，尝试“rails generate controller Impulse index”，就像在tutotial中一样，但是得到了错误：

/usr/lib/ruby/vendor_ruby/bundler/runtime.rb：80：在`救援中阻止（2级）在''中：尝试加载宝石'activeadmin'时出错。 （捆扎机:: GemRequireError）

完全错误

  

/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:80:in rescue in block (2 levels) in require': There was an error while trying to load the gem 'activeadmin'. (Bundler::GemRequireError) from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:76:in块（2级）in require'           来自/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:72:in each' from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:72:in阻止在'需要'           来自/usr/lib/ruby/vendor_ruby/bundler/runtime.rb:61:in each' from /usr/lib/ruby/vendor_ruby/bundler/runtime.rb:61:in require'           来自/usr/lib/ruby/vendor_ruby/bundler.rb:99:in require' from /home/deploy/20171102/staytrue/config/application.rb:7:in'           来自/var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:141:in require' from /var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:141:in require_application_and_environment！'           来自/var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:128:in generate_or_destroy' from /var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:50:in generate'           来自/var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:39:in run_command!' from /var/lib/gems/2.3.0/gems/railties-4.2.1/lib/rails/commands.rb:17:in'           来自bin / rails：8：require' from bin/rails:8:in'

Answer 1

按照以下步骤操作：

1. 删除gemfile.lock（rm Gemfile.lock）

2. 删除activeadmin gem（gem uninstall activeadmin）

3. 捆绑安装/更新

用于测试irb / rails c：

require 'activeadmin'