rake aborted! uninitialized constant <ClassName>

Question

Hi um quite new to rails and currently working on a task definition in rake file . This is my code

test_task.rake

namespace :test_name_space do
  namespace :to do
    task :my_task do
      p "========================="
      sample_out_put = SOutput.new
      sample_out_put.createfileoutput
    end
  end
end

and in my SOutput

   class SOutput



      def createfileoutput
        current_time = Time.new
        puts "====================================="
        puts "This is a scheduled file output"
        puts "====================================="
        File.open("/home/kalanamith/Desktop/out.txt", "a+") do |file|
        p current_time.inspect.to_s
        file.write("This is a sample test")
        file.write(current_time.inspect.to_s)
        end
      end


    fileoutput = SOutput.new
    fileoutput.createfileoutput
end

and when I run the

rake test_name_space:to:my_task
"========================="
rake aborted!
uninitialized constant SOutput

um getting above error I dont have a big picture about this error. Can anyone guide me?

    /home/kalanamith/Documents/rails_rnd/rails_cron/lib/tasks/test_task.rake:6:in `block (3  levels) in <top (required)>'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:246:in `call'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:246:in `block in execute'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:241:in `each'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:241:in `execute'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:184:in `block in invoke_with_call_chain'
   /usr/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:177:in `invoke_with_call_chain'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:170:in `invoke'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:143:in `invoke_task'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `block (2 levels) in top_level'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `each'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `block in top_level'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:110:in `run_with_threads'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:95:in `top_level'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:73:in `block in run'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/var/lib/gems/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:70:in `run'
/var/lib/gems/1.9.1/gems/rake-10.0.4/bin/rake:33:in `<top (required)>'
 /usr/local/bin/rake:19:in `load'
/usr/local/bin/rake:19:in `<main>'
 Tasks: TOP => test_name_space:to:my_task

Answer 1

try adding:

....
task :my_task => :environment do
....