Rails syntax error in one-to-many associations exercise in Lynda Rails 3 tutorial -

what problem , how can fix it?

when in rails console run page.editors

and following syntax errors:

...simple_cms/app/models/admin_user.rb:8: syntax error, unexpected ':', expecting keyword_end   scope: named, lambda {|first,last| ...         ^ ...simple_cms/app/models/admin_user.rb:8: syntax error, unexpected '\n', expecting :: or '[' or '.' 

here code...

admin_user.rb

class adminuser < activerecord::base   attr_accessible :title, :body, :username, :first_name, :last_name   # configure different table name   # set_table_name("admin_users")    has_and_belongs_to_many :pages    scope: named, lambda {|first,last| where(:first_name => first, :last_name => last)}  end 

page.rb

class page < activerecord::base   attr_accessible :title, :body, :name, :permalink, :position    belongs_to :subject   has_many :sections   has_and_belongs_to_many :editors, :class_name => "adminuser" end 

alter_users.rb

class alterusers < activerecord::migration   def     rename_table("users", "admin_users")     add_column("admin_users", "username", :string, :limit => 25)     change_column("admin_users", "email", :string, :limit => 100)     rename_column("admin_users", "password", "hashed_password")       add_column("admin_users", "salt", :string, :limit => 40)       puts "*** add index ***"       add_index("admin_users", "username")   end    def down     remove_index("admin_users", "username")     remove_column("admin_users", "salt")     rename_column("admin_users", "hashed_password", "password")     change_column("admin_users", "email", :string, :default => "", :null => false)     remove_column("admin_users", "username")     rename_table("admin_users", "users")   end end 

create_admin_users_pages_join.rb

class createadminuserspagesjoin < activerecord::migration   def     create_table :admin_users_pages, :id => false |t|         t.integer "admin_user_id"         t.integer "page_id"     end     add_index :admin_users_pages, ["admin_user_id", "page_id"]   end    def down     drop_table :admin_users_pages   end end 

don't read below line: stack overflow wanted me add more text because question has lot of code. thought having code want me :)

remove colon on scope, , put before named:

scope: named, lambda {|first,last| ... scope :named, lambda {|first,last| ...