Issue with mirroring

[laserguy2020]

I am running into
Fetching: https://rubygems.org/specs.4.8.gz with 10 threads
/usr/local/rvm/gems/ruby-1.9.3-p392@global/gems/bundler-1.3.5/lib/bundler/fetcher.rb:70:in initialize': undefined methoduser=' for "https://rubygems.org/":String (NoMethodError)
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/mirror.rb:30:in new' from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/mirror.rb:30:infetch_specs_using_bundler'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/mirror.rb:16:in gems' from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/command.rb:36:inblock in execute'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/command.rb:17:in each' from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/lib/gem-sparse-mirror/command.rb:17:inexecute'
from /usr/local/rvm/gems/ruby-1.9.3-p392/gems/gem-sparse-mirror-0.0.1/bin/gem-sparse-mirror:5:in <top (required)>' from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/gem-sparse-mirror:19:inload'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/gem-sparse-mirror:19:in <main>' from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:ineval'
from /usr/local/rvm/gems/ruby-1.9.3-p392/bin/ruby_noexec_wrapper:14:in `

'

Any ideas how to fix this?