carrierwave is broken

[wikimatze]

I've encountered this error with ruby-2.2.1 and padrino 0.13.1

$ padrino-gen plugin carrierwave
No local changes to save
WARN: Unresolved specs during Gem::Specification.reset:
      activesupport (>= 3.1)
      tilt (< 3, >= 1.3)
      mustermann19 (>= 0)
WARN: Clearing out unresolved specs.
Please report a bug if this causes problems.
       apply  https://raw.github.com/padrino/padrino-recipes/master/plugins/carrierwave_plugin.rb
      create    lib/uploader.rb
  => Executing: padrino-gen model upload file:text created_at:datetime -r=/tmp/sample_blog_updated
=> Problem loading /tmp/sample_blog_updated/config/boot.rb
=> uninitialized constant CarrierWave
  /tmp/sample_blog_updated/lib/uploader.rb:1:in `<top (required)>'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/reloader.rb:95:in `block in safe_load'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/reloader.rb:308:in `with_silence'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/reloader.rb:95:in `safe_load'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/loader.rb:154:in `block in require_dependencies'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/loader.rb:152:in `each'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/loader.rb:152:in `require_dependencies'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-core-0.13.1/lib/padrino-core/loader.rb:58:in `load!'
  /tmp/sample_blog_updated/config/boot.rb:50:in `<top (required)>'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-gen-0.13.1/lib/padrino-gen/generators/cli.rb:26:in `require'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-gen-0.13.1/lib/padrino-gen/generators/cli.rb:26:in `load_boot'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
  /home/wm/.rvm/gems/ruby-2.2.1/gems/padrino-gen-0.13.1/bin/padrino-gen:16:in `<main>'
       apply  orms/activerecord
       apply  tests/rspec
      create  models/upload.rb
      create  spec/models/upload_spec.rb
      create  db/migrate/004_create_uploads.rb
     prepend    models/upload.rb
      insert    Gemfile
      insert    models/upload.rb