trying to find exception

app/debugger.rb

@@ -2,18 +2,8 @@
 class Debugger
 
   include React::Component
-#  required_param :machine
-  define_state  :machine => Virtual.machine.boot
-
-  before_mount do
-    code = Ast::ExpressionList.new [Ast::CallSiteExpression.new( "putstring", [], Ast::StringExpression.new("Hello again"))]
-    Virtual::Compiler.compile( code , machine.space.get_main )
-    machine.run_before "Register::CallImplementation"
-  end
-
-  def initialize
-    @interpreter = Interpreter.new
-  end
+  required_param :machine , :type => Virtual::Machine
+  define_state :interpreter  => Interpreter.new
 
   def render
     div.container do
@@ -33,7 +23,7 @@ class Debugger
               BlockView block: [ "block 1" , "block 2"]
             end
           end
-          RegisterView registers: @interpreter.registers
+          RegisterView registers: interpreter.registers
         end
       end
     end

app/main.rb

@@ -1,17 +1,24 @@
 require 'opal'
 require "opal/parser"
-require 'opal-jquery'
-require "json"
-require 'opal-react'
 
 require "salama"
+require "interpreter"
+
+require 'opal-react'
+
 require "class_view"
 require "register_view"
 require "source_view"
 require "block_view"
-require "interpreter"
 require "debugger"
 
+require 'opal-jquery'
+
 Document.ready? do  # Document.ready? is a opal-jquery method.
-  React.render( React.create_element( Debugger ),  Element['#content']    )
+  machine = Virtual.machine.boot
+  React.render( React.create_element( Debugger , :machine => machine ),  Element['#content']    )
+  code = Ast::ExpressionList.new( [Ast::CallSiteExpression.new(:putstring, [] ,Ast::StringExpression.new("Hello again"))])
+  Virtual::Compiler.compile( code , machine.space.get_main )
+  machine.run_before "Register::CallImplementation"
+
 end

config.ru

@@ -1,7 +1,6 @@
 # config.ru
 require 'bundler'
 Bundler.require
-require "opal/parser"
 
 Opal.use_gem "salama"
 Opal.use_gem "salama-arm"