ios - undefined method `initWithNibName' -

i have started learning ios development rubymotion , i'm doing tutorial. seems pretty easy understand, right i'm stuck error when run rake command:

colorcontroller.rb:7:in `initwithcolor:': undefined method `initwithnibname' #<colorcontroller:0x9b4f470> (nomethoderror)     searchcontroller.rb:46:in `open_color:'     color.rb:35:in `block in find:'     query.rb:358:in `call_delegator_with_response'     query.rb:128:in `connectiondidfinishloading:' 

i got part whew ton of code isn't it. found on tutorial page , i'm stuck there. code looks like:

# app_delegate.rb class appdelegate   def application(application, didfinishlaunchingwithoptions:launchoptions)     @window = uiwindow.alloc.initwithframe(uiscreen.mainscreen.bounds)      @search_controller = searchcontroller.alloc.initwithnibname(nil, bundle: nil)     @navigation_controller = uinavigationcontroller.alloc.initwithrootviewcontroller(@search_controller)      @window.rootviewcontroller = @navigation_controller     @window.makekeyandvisible     true   end end  # colorcontroller.rb class colorcontroller < uiviewcontroller   attr_accessor :color   def initwithcolor(color)     initwithnibname(nil, bunlde: nil)     self.color = color     self   end   def viewdidload     super     self.title = self.color.hex      @info_container = uiview.alloc.initwithframe [[0, 0], [self.view.frame.size.width, 110]]     @info_container.backgroundcolor = uicolor.lightgraycolor      self.view.addsubview @info_container      @color_view = uiview.alloc.initwithframe [[10, 10], [90, 90]]     @color_view.backgroundcolor = string.new(self.color.hex).to_color      self.view.addsubview @color_view      @color_label = uilabel.alloc.initwithframe [[110, 30], [0, 0]]     @color_label.text = self.color.hex     @color_label.sizetofit      self.view.addsubview @color_label      @text_field = uitextfield.alloc.initwithframe [[110, 60], [100, 26]]     @text_field.placeholder = "tag"     @text_field.textalignment = uitextalignmentleft     @text_field.autocapitalizationtype = uitextautocapitalizationtypenone     @text_field.borderstyle = uitextborderstyleroundedrect      self.view.addsubview @text_field      @add_button = uibutton.buttonwithtype(uibuttontyperoundedrect)     @add_button.settitle("add", forstate: uicontrolstatenormal)     @add_button.settitle("adding", forstate: uicontrolstatedisabled)     @add_button.settitlecolor(uicolor.lightgraycolor, forstate: uicontrolstatedisabled)     @add_button.sizetofit     @add_button.frame = [[@text_field.frame.origin.x + @text_field.frame.size.width + 10, @text_field.frame.origin.y], @add_button.frame.size]      self.view.addsubview(@add_button)      table_frame = [[0, @info_container.frame.size.height], [self.view.bounds.size.width, self.view.bounds.size.height - @info_container.frame.size.height - self.navigationcontroller.navigationbar.frame.size.height]]     @table_view = uitableview.alloc.initwithframe(table_frame, style: uitableviewstyleplain)      self.view.addsubview(@table_view)    end end  # searchcontroller.rb class searchcontroller < uiviewcontroller def viewdidload   super   self.title = "search"   self.view.backgroundcolor = uicolor.whitecolor    @text_field = uitextfield.alloc.initwithframe [[10, 10], [self.view.frame.size.width - 20, 30]]   @text_field.placeholder = "#abcabc"   @text_field.textalignment = uitextalignmentleft   @text_field.autocapitalizationtype = uitextautocapitalizationtypenone   @text_field.borderstyle = uitextborderstyleroundedrect   @text_field.center = cgpointmake(self.view.frame.size.width / 2, self.view.frame.size.height / 2 - 100)    self.view.addsubview @text_field    @search_button = uibutton.buttonwithtype(uibuttontyperoundedrect)   @search_button.settitle("search", forstate: uicontrolstatenormal)   @search_button.settitle("loading", forstate: uicontrolstatedisabled)   @search_button.sizetofit   @search_button.center = cgpointmake(self.view.frame.size.width / 2, @text_field.center.y + 40)    self.view.addsubview @search_button    @search_button.when(uicontroleventtouchupinside)     @search_button.enabled = false     @text_field.enabled = false      hex = @text_field.text     hex = hex[1..-1] if hex[0] == "#"      color.find(hex) |color|       if color.nil?         @search_button.settitle("none :(", forstate: uicontrolstatenormal)       else         @search_button.settitle("search", forstate: uicontrolstatenormal)         self.open_color(color)       end       @search_button.enabled = true       @text_field.enabled = true     end    end  end def open_color(color)   self.navigationcontroller.pushviewcontroller(colorcontroller.alloc.initwithcolor(color), animated: true) end end 

i have 2 models i'm sure not relevant unless you're going run code.

can tell me supposed ? realise i'm trying call initwithnibname method not defined on class, tutorial assumed it's correct. need define on colorcontroller class ? or can call in other way ?

you spelled bundle incorrectly.

change:

initwithnibname(nil, bunlde: nil) 

to:

initwithnibname(nil, bundle: nil)