Rails server error message


Hi, I’m using ruby on rails in Cloud 9, whenever I’m running the server, I have a message appearing at the top:

“/usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.1.0/lib/active_support/values/time_zone.rb:285: warning: circular argument reference - now
=> Booting WEBrick
=> Rails 4.1.0 application starting in development on
=> Run rails server -h for more startup options
=> Notice: server is listening on all interfaces ( Consider using (–binding option)
=> Ctrl-C to shutdown server
[2016-08-04 11:38:40] INFO WEBrick 1.3.1
[2016-08-04 11:38:40] INFO ruby 2.3.0 (2015-12-25) [x86_64-linux]
[2016-08-04 11:38:40] INFO WEBrick::HTTPServer#start: pid=3681 port=8080”.

The server seems working though but I’m afraid that if I don’t fix this minor prob it can get bigger later on.

Thanks for your help



I don’t see any error messages, I think your server is running fine.


Thanks for your reply, actually I bothered by the first line:

usr/local/rvm/gems/ruby-2.3.0/gems/activesupport-4.1.0/lib/active_support/values/time_zone.rb:285: warning: circular argument reference - now

This appear not only when I run the server but for each action I make in the console so I don’t know what it means and if this can be a problem later on.

Thanks for your help


I am also getting a similar message when I run rake spec command:

/usr/local/rvm/rubies/ruby-2.3.0/bin/ruby -I/usr/local/rvm/gems/ruby-2.3.0/gems/rspec-core-3.5.1/lib:/usr/local/rvm/gems/ruby-2.3.0/gems/rspec-support-3.5.0/lib /usr/local/rvm/gems/ruby-2.3.0/gems/rspec-core-3.5.1/exe/rspec --pattern spec/\*\*\{,/\*/\*\*\}/\*_spec.rb

However, I do not get this message when I try to run the Rails server.

Maybe @bradydowling or @timjrobinson can add some insight on what this means?


We don’t have much experience with ruby unfortunately. I’m not sure what that warning means and it doesn’t seem Cloud9 related. You’d probably have more luck posting this on Stack Overflow.


I am getting the same error message. I can not figure this out…Running this command, I get the below message:

$ bundle exec rake db:migrate
/usr/local/rvm/gems/ruby-2.2.1/gems/activesupport-4.1.0/lib/active_support/values/time_zone.rb:285: warning: circular argument reference - now
== 20170608180952 CreateContacts: migrating ===================================
– create_table(:contacts)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

SQLite3::SQLException: table “contacts” already exists: CREATE TABLE “contacts” (“id” INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, “name” varchar(255), “email” varchar(255), “comments” text, “created_at” datetime, “updated_at” datetime)