Could not locate Gemfile or .bundle/ directory ----- rvm | cron | ubuntu | whenever

I'm using whenever and dynamic_sitemaps gems to generate sitemaps.

here's my schedule.rb

job_type :rake, "{ cd #{@current_path} > /dev/null; } && RAILS_ENV=:environment bundle exec rake :task --silent :output"
job_type :script, "{ cd #{@current_path} > /dev/null; } && RAILS_ENV=:environment bundle exec script/:task :output"
job_type :runner, "{ cd #{@current_path} > /dev/null; } && RAILS_ENV=:environment bundle exec rails runner ':task' :output"

set :output, "#{path}/log/cron.log"

every 1.day, :at => '5:30 am' do  
  rake "sitemap:generate"        
end

if I use "bundle exec rake sitemap:generate RAILS_ENV="production"" my sitemap is generated properly.

`bundle exec whenever RAILS_ENV="production"` seems to be working too

30 5 * * * /bin/bash -l -c '{ cd > /dev/null; } && RAILS_ENV=production bundle exec rake sitemap:generate --silent >> /var/www/.*******.log 2>&1'

## [message] Above is your schedule file converted to cron syntax; your crontab file was not updated.
## [message] Run `whenever --help' for more options.

But when I check cron.log on another day(after 5:30) I see this message

Could not locate Gemfile or .bundle/ directory

So, the new sitemap wasn't generated. How can I fix this?

already tried this solution but it didn't work for me or I'm doing something wrong.

I installed ruby with rvm

UPDATE

So, I made it working. And here's what I did:

ls /usr/local/rvm/wrappers/

This gave me a list of wrappers/aliases that I have. One of them was ruby-2.2.2

then I edited my schedule.rb

set :output, "#{path}/log/cron.log"
job_type :runner, "cd #{path} && RAILS_ENV=production /home/$USER/.rvm/wrappers/ruby-2.2.2/bundle exec rails runner ':task' :output"

every 1.day, :at => '4:30 am' do
  rake "sitemap:generate"
end

and run bundle exec whenever --update-crontab RAILS_ENV="production" from the app directory(current).

UPD 2017

rvm cron setup might be helpful too

Solution

The problem is that when cron is executed, it won't load the rvm environment. There are several approaches to solve this. The RVM documentation has all the information you need - https://rvm.io/deployment/cron