Rails 4, Capistrano 3.0.0, cannot load such file — deploy

Question

I just ran bundle update and capistrano got updated to 3.0.0 but now when I run cap deploy I get an error and can\'t figure out how to fix this. I have been updating my serv

Answer 1

Instead of downgrading to Capistrano 2 use the new configuration from the current version.

require "capistrano/bundler"
require "capistrano/rails/assets"
require "capistrano/rails/migrations"

See also this nice posting, which summarises the differences between Capistrano 2 and 3.

Answer 2

Make sure you are using bundle exec (most likely you have multiple gem versions of capistrano)

i.e.

bundle exec cap -T

Answer 3

The fastest way to fix this I have found is to backup the cap files (Capfile, config/deploy.rb, and config/deploy/*.rb) and then re capify (it's no longer called "capify"):

bundle exec cap install STAGES=staging,production

Then recreate your cap files from your backup. It will take you 5 minutes to do this and you'll be over the major Capistrano upgrade hump.

Answer 4

I had this problem today and pastullo's solution above fixed it except that I had to run gem uninstall capistrano (as markhorrocks answered) not bundle uninstall capistrano.

I also found this blog on bundler very useful: http://viget.com/extend/bundler-best-practices

Thanks for sharing this as it saved me heaps of time. x

Answer 5

I had to run gem uninstall capistrano

then update the gemfile with gem 'capistrano', '~> 2.15'

and then run to reinstall the correct version again with bundle update capistrano

Answer 6

I used

bundle exec cap production deploy

instead of just cap production deploy