I am installing cartoDB in ubuntu using this procedure . When I initialize the metadatabase using the following command
RAILS_ENV=development bundle exec rake db:create
I get an error saying
rake aborted! cannot load such file -- net/telnet
The stack trace
/home/ubuntu/cartodb/lib/varnish/lib/cartodb-varnish.rb:1:in
require' /home/ubuntu/cartodb/lib/varnish/lib/cartodb-varnish.rb:1:in
' /home/ubuntu/cartodb/config/application.rb:189:inrequire' /home/ubuntu/cartodb/config/application.rb:189:in
' /home/ubuntu/cartodb/Rakefile:3:inrequire' /home/ubuntu/cartodb/Rakefile:3:in
' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:inload' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/rake_module.rb:25:in
load_rakefile' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:501:inraw_load_rakefile' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:82:in
block in load_rakefile' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:133:instandard_exception_handling' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:81:in
load_rakefile' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:65:inblock in run' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:133:in
standard_exception_handling' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/lib/rake/application.rb:63:inrun' /usr/local/lib/ruby/gems/2.3.0/gems/rake-0.9.2.2/bin/rake:33:in
' /usr/local/bin/rake:23:inload' /usr/local/bin/rake:23:in
' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/cli/exec.rb:63:inload' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/cli/exec.rb:63:in
kernel_load' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/cli/exec.rb:24:inrun' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/cli.rb:304:in
exec' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/command.rb:27:inrun' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in
invoke_command' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor.rb:359:indispatch' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/vendor/thor/lib/thor/base.rb:440:in
start' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/cli.rb:11:instart' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/exe/bundle:27:in
block in ' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/lib/bundler/friendly_errors.rb:98:inwith_friendly_errors' /usr/local/lib/ruby/gems/2.3.0/gems/bundler-1.12.5/exe/bundle:19:in
' /usr/local/bin/bundle:23:inload' /usr/local/bin/bundle:23:in
'
What could be the problem. I am not conversant with RoR.