Capistrano deploy fails after I changed the repository URL

Capistrano 2.X

Delete and re-clone the repo using the new address:

cd $deploy_to/shared
rm -rf cached-copy
git clone ssh://git@example.org/new/repo.git cached-copy

Modify your config/deploy.rb to use the new repo:

set :repository, "ssh://git@example.org/new/repo.git"
set :scm, :git
set :deploy_via, :remote_cache

Deploy again:

cap deploy

Capistrano 3.X

1. Remove the $deploy_to/repo directory
2. Modify your config/deploy.rb (same as 2.X)
3. cap deploy