Rails Devise Error: Missing host to link to

Question

Really weird error hitting my rails app on localhost when I create a new user (using Devise gem) and attempt to get a confirmation email:

ArgumentError in Registrations#create
Showing     /Users/matthewvandenboogart/Sites/certlocal/app/views/devise/mailer/confirmation_instructions.html.erb where line #5 raised:

Missing host to link to! Please provide the :host parameter, set default_url_options[:host], or set :only_path to true

For the record, other emails are sending fine from localhost. The only email that seems to pop this error is the initial confirmation email. To top it off, I'm not seeing the error when code is pushed up to staging (on Heroku).

config/development.rb:

 config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }

Anyone have insights into what may be going on or where to look to resolve? It's an annoying type error that I would like to resolve so one day it doesn't end up happening on production.

try to change your default_url_options to {host: 'localhost:3000'}, it should work — Othmane El Kesri, Jun 07 '17 at 04:09
This question was answer, you can check it by the link [here](https://stackoverflow.com/questions/4114835/heroku-devise-missing-host-to-link-to-please-provide-host-parameter-or-set-d?rq=1) — nvtin, Jun 07 '17 at 07:44
@OthmaneElKesri - tried moving the port to be part of localhost - same error. — matthewvb, Jun 08 '17 at 01:02
@nvtin - I'm asking a different question. The question that answers is how to set up the host for a heroku url. I'm working on fixing local. — matthewvb, Jun 08 '17 at 01:05

score 0 · Answer 1 · answered Jun 08 '17 at 03:14

0

You said "other emails are sending fine from localhost. The only email that seems to pop this error is the initial confirmation email"

Hmmm. I am not sure what issue you are getting. but if every email work well except the first email, so I think that email was cached. Try to check your development.rb this line

config.action_mailer.perform_caching = false

If it is true, set it to false.

answered Jun 08 '17 at 03:14

nvtin

11
2

Thanks for looking into this @nvtin. I don't have caching turned on. Trying to set it to false throws an error: `undefined method perform_caching= for ActionMailer`. Looks like that's a Rails 5 thing? (I'm using 4.2.7.1) – matthewvb Jun 09 '17 at 00:29

Rails Devise Error: Missing host to link to

1 Answers1