壊れたレール環境：レールを実行することができません足場

Question

私は謎があります：私のrvm/ruby​​-1.9.2環境、レール3.1.3を実行することはできませんこのコマンドを実行することはできません rails generate scaffoldゲーム名： ：文字列

私は、私がこれまでにRVMを削除し、すべての依存宝石、再インストールRVM、ルビー1.9.2するため行っている「メソッド行方不明」失敗

kenb@stargate:~/development/sudoku$ rails g scaffold Game name:string difficulty:string 
     invoke active_record 
/home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/base.rb:1088:in `method_missing': undefined method `mass_assignment_sanitizer=' for ActiveRecord::Base:Class (NoMethodError) 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:59:in `block (3 levels) in <class:Railtie>' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:58:in `each' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/railtie.rb:58:in `block (2 levels) in <class:Railtie>' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:42:in `each' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/active_record/base.rb:2190:in `<top (required)>' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators/named_base.rb:165:in `pluralize_table_names?' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators/named_base.rb:112:in `table_name' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.3/lib/rails/generators/active_record/model/model_generator.rb:17:in `create_migration_file' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:109:in `invoke' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:269:in `block in _invoke_for_class_method' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/shell.rb:74:in `with_padding' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:258:in `_invoke_for_class_method' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:150:in `_invoke_from_option_orm' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/task.rb:22:in `run' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `block in invoke_all' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `each' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `map' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in `invoke_all' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:226:in `dispatch' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/base.rb:389:in `start' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/generators.rb:168:in `invoke' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands/generate.rb:12:in `<top (required)>' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `block in require' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `block in load_dependency' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:640:in `new_constants_in' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:223:in `load_dependency' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.3/lib/active_support/dependencies.rb:240:in `require' 
    from /home/kenb/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.3/lib/rails/commands.rb:28:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>' 

後、次のダンプを取得します私のアプリのフォルダに 'bundle install'を実行してください。すべてうまくいく。次に、generateコマンドでエラーが発生します。

Answer 1

http://apidock.com/rails/ActiveModel/MassAssignmentSecurity/ClassMethods/mass_assignment_sanitizer%3Dによると、mass_assignment_sanitizerは、3.1.3を使用している間、rails 3.2に導入されました。あなたはレール3.2でプロジェクトを生成していませんか？