/opt/cartodb2.0/cartodb20/vendor/bundle/ruby/1.9.1/gems/backports-3.1.1/lib/backports/tools.rb:328:in `require_with_backports': iconv will be deprecated in the future, use String#encode instead.
/opt/cartodb2.0/cartodb20/lib/importer/lib/cartodb-importer/importer.rb:20: warning: already initialized constant SUPPORTED_FORMATS
/usr/local/bin/ruby /opt/cartodb2.0/cartodb20/vendor/bundle/ruby/1.9.1/bin/rake assets:precompile:all RAILS_ENV=production RAILS_GROUPS=assets
/opt/cartodb2.0/cartodb20/vendor/bundle/ruby/1.9.1/gems/backports-3.1.1/lib/backports/tools.rb:328:in `require_with_backports': iconv will be deprecated in the future, use String#encode instead.
/opt/cartodb2.0/cartodb20/lib/importer/lib/cartodb-importer/importer.rb:20: warning: already initialized constant SUPPORTED_FORMATS
AssetSync: using /opt/cartodb2.0/cartodb20/config/initializers/asset_sync.rb
/opt/cartodb2.0/cartodb20/vendor/bundle/ruby/1.9.1/gems/backports-3.1.1/lib/backports/tools.rb:328:in `require_with_backports': iconv will be deprecated in the future, use String#encode instead.
/opt/cartodb2.0/cartodb20/lib/importer/lib/cartodb-importer/importer.rb:20: warning: already initialized constant SUPPORTED_FORMATS
AssetSync: using /opt/cartodb2.0/cartodb20/config/initializers/asset_sync.rb
rake aborted!
Fog provider can't be blank, Fog directory can't be blank

Tasks: TOP => assets:sync
(See full trace by running task with --trace)
rake aborted!
Command failed with status (1): [/usr/local/bin/ruby /opt/cartodb2.0/cartod...]

Tasks: TOP => assets:precompile
(See full trace by running task with --trace)