LoadError: cannot load such file after updating from 3.6.1 to 3.15.0

[murtyk]

Deployments were working fine for several years with 3.6.1. As part of trying Ruby 3.0 migration we upgraded capistrano to 3.15.0 and getting the following error during deploy:

LoadError: cannot load such file -- capistrano/git

Capfile has:

require "capistrano/setup"
require "capistrano/multiconfig"
require "capistrano/deploy"
require "capistrano/scm"
require "capistrano/git"
require "capistrano/bundler"
require "whenever/capistrano"
require "time"
require "capistrano/scm/git"

We also tried by removing require "capistrano/git" and including:
require "capistrano/scm/git"
install_plugin Capistrano::SCM::Git

But with this we are getting:
cannot load such file -- capistrano/default-git.rb

Are we supposed to make some changes to Capfile when upgrading to 3.15.0?

[mattbrictson]

Your Capfile should start like this, in this order:

require "capistrano/setup"
require "capistrano/deploy"
require "capistrano/scm/git"
install_plugin Capistrano::SCM::Git

# The rest of your custom config can go here:
require "capistrano/bundler"
require "whenever/capistrano"
require "time"

You can refer to the upgrade guide: https://github.com/capistrano/capistrano/blob/master/UPGRADING-3.7.md

You can also refer to the Capfile template that ships with 3.15.0: https://github.com/capistrano/capistrano/blob/v3.15.0/lib/capistrano/templates/Capfile

I see you have require "capistrano/multiconfig" before many of the standard capistrano require statements. I do not know what that does. It is not an official capistrano project. Perhaps it is not compatible with 3.15.0? You might want to check with its maintainers: https://github.com/railsware/capistrano-multiconfig