Question

我正在使用rails 4.1，但是当我尝试运行“轨道”时在终端上它给出了这个错误：

Exiting
/home/ben/.rvm/gems/ruby-2.0.0-p247@addtocartalerts/gems/railties-4.0.4/lib/rails/commands/server.rb:78:in `start': undefined method `formatter' for nil:NilClass (NoMethodError)
        from /home/ben/.rvm/gems/ruby-2.0.0-p247@addtocartalerts/gems/railties-4.0.4/lib/rails/commands.rb:76:in `block in <top (required)>'
        from /home/ben/.rvm/gems/ruby-2.0.0-p247@addtocartalerts/gems/railties-4.0.4/lib/rails/commands.rb:71:in `tap'
        from /home/ben/.rvm/gems/ruby-2.0.0-p247@addtocartalerts/gems/railties-4.0.4/lib/rails/commands.rb:71:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

请帮助

Answer 1

您没有使用rails 4.1。看看铁路宝石路径。它说铁路4.0.4

检查Gemfile是否正确。做bundle update rails。如果安装了多个rails gem，则使用binstubs或bundle exec rails s

rails server not starting - undefined method`formatter＆＃39; for nil：NilClass（NoMethodError）错误

1 个答案: