Cron parameter in not working in sidekiq rails

I have been implemented sidekiq-cron in my rails application. I want to run scheduled task using this gem.

Here is yml file config/schedule.yml :

message_worker:  class: MessageWorker  queue: default  cron: "* * * * * *"

Here is my worker class:

class MessageWorker  include Sidekiq::Worker  sidekiq_options retry: 2, backtrace: true  def perform()    # Here is my business logic  endend

Here I loading all my task in initializer file:

require 'sidekiq'require 'sidekiq-cron'require 'sidekiq/web'redis_config = YAML.load_file("config/redis.yml")redis_config.merge! redis_config.fetch(Rails.env, {})redis_config.symbolize_keys!Sidekiq.configure_server do |config|  config.redis = { url: "redis://localhost:6379/" }  puts "redis started"endSidekiq.configure_client do |config|  config.redis = { url: "redis://localhost:6379/" }  puts "configure client"endschedule_file = "config/schedule.yml"if File.exists?(schedule_file) && Sidekiq.server? sidekiq_cron = YAML.load_file(schedule_file) Sidekiq::Cron::Job.load_from_hash sidekiq_cronend

When I run sidekiq server using bundle ex sedikiq it throws me below exception:

2016-12-01T14:08:36.916Z 12150 TID-orgj0i010 ERROR: CRON JOB: can't convert Rufus::Scheduler::ZoTime into an exact number2016-12-01T14:08:36.916Z 12150 TID-orgj0i010 ERROR: CRON JOB: /home/user/.rvm/gems/ruby-2.3.0@<gemset-name>/gems/activesupport-4.2.7.1/lib/active_support/core_ext/time/calculations.rb:233:in `-'

How Can I resolve this problem?