# Getting type errors in sidekiq queue
**URL:** https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287
**Category:** Bug
**Created:** [February 23, 2018, 7:59am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287 "2018-02-23T07:59:13Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@carlokok](https://meta.discourse.org/u/carlokok)
#### Post date: [February 23, 2018, 7:59am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/1 "2018-02-23T07:59:13Z")
Getting lots of these (curiously all for 1 user/thread, one I never got notified for, I’m user 1). What’s the best way to get more info for this to resolve it?
| Queue | [default](https://talk.remobjects.com/sidekiq/queues/default) |
| --- | --- |
| Job | `Jobs::UserEmail` |
| Arguments | ` \n {"type"=>"user_private_message",\n "user_id"=>1, "notification_id"=>159511, \n"notification_data_hash"=>{"topic_title"=>"Reference Issue 3:", \n"original_post_id"=>71940, "original_post_type"=>1, \n"original_username"=>"UN", \n"display_username"=>"UN"}, \n"notification_type"=>"private_message", "post_id"=>71940, \n"current_site_id"=>"default"}\n ` |
| JID | `72bfbc432a6c0a96dadfb8c4` |
| CreatedAt | 4 hours ago |
| In Queue | 52 seconds ago |
| Retry Count | 9 |
| Last Attempt | 51 seconds ago |
| Next Retry | in 1 hour |
### Error
| Error Class | `Jobs::HandledExceptionWrapper` |
| --- | --- |
| Error Message | Wrapped TypeError: no implicit conversion of nil into String |
---
### Author:  [@tgxworld](https://meta.discourse.org/u/tgxworld)
#### Post date: [February 24, 2018, 2:15am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/2 "2018-02-24T02:15:18Z")
Do you happen to have the backtrace in `/logs`?
---
### Author:  [@carlokok](https://meta.discourse.org/u/carlokok)
#### Post date: [February 24, 2018, 7:01am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/3 "2018-02-24T07:01:48Z")
```plaintext
/var/www/discourse/lib/email/message_builder.rb:65:in `gsub!'
/var/www/discourse/lib/email/message_builder.rb:65:in `subject'
/var/www/discourse/lib/email/message_builder.rb:126:in `build_args'
/var/www/discourse/lib/email/message_builder.rb:9:in `build_email'
/var/www/discourse/app/mailers/user_notifications.rb:571:in `send_notification_email'
/var/www/discourse/app/mailers/user_notifications.rb:395:in `notification_email'
/var/www/discourse/app/mailers/user_notifications.rb:275:in `user_private_message'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionpack-5.1.4/lib/abstract_controller/base.rb:186:in `process_action' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionpack-5.1.4/lib/abstract_controller/callbacks.rb:20:in `block in process_action' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/callbacks.rb:97:in `run_callbacks' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionpack-5.1.4/lib/abstract_controller/callbacks.rb:19:in `process_action' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionpack-5.1.4/lib/abstract_controller/base.rb:124:in `process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/rescuable.rb:23:in `block in process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/rescuable.rb:15:in `handle_exceptions' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/rescuable.rb:22:in `process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionview-5.1.4/lib/action_view/rendering.rb:30:in `process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/base.rb:609:in `block in process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/notifications.rb:166:in `block in instrument' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/notifications/instrumenter.rb:21:in `instrument' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/notifications.rb:166:in `instrument' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/base.rb:608:in `process' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/message_delivery.rb:105:in `block in processed_mailer' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/message_delivery.rb:104:in `tap' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/message_delivery.rb:104:in `processed_mailer' /var/www/discourse/vendor/bundle/ruby/2.4.0/gems/actionmailer-5.1.4/lib/action_mailer/message_delivery.rb:27:in ` __getobj__'
/usr/local/lib/ruby/2.4.0/delegate.rb:80:in `method_missing'
/var/www/discourse/lib/email/sender.rb:30:in `send'
/var/www/discourse/app/jobs/regular/user_email.rb:41:in `execute'
/var/www/discourse/app/jobs/base.rb:134:in `block (2 levels) in perform'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/rails_multisite-2.0.4/lib/rails_multisite/connection_management.rb:63:in `with_connection'
/var/www/discourse/app/jobs/base.rb:129:in `block in perform'
/var/www/discourse/app/jobs/base.rb:125:in `each'
/var/www/discourse/app/jobs/base.rb:125:in `perform'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:188:in `execute_job'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:170:in `block (2 levels) in process'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:128:in `block in invoke'
/var/www/discourse/lib/sidekiq/pausable.rb:80:in `call'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:130:in `block in invoke'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/middleware/chain.rb:133:in `invoke'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:169:in `block in process'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:141:in `block (6 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/job_retry.rb:97:in `local'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:140:in `block (5 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq.rb:36:in `block in <module:Sidekiq>'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:136:in `block (4 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:204:in `stats'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:131:in `block (3 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/job_logger.rb:7:in `call'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:130:in `block (2 levels) in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/job_retry.rb:72:in `global'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:129:in `block in dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/logging.rb:44:in `with_context'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/logging.rb:38:in `with_job_hash_context'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:128:in `dispatch'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:168:in `process'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:85:in `process_one'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/processor.rb:73:in `run'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/util.rb:16:in `watchdog'
/var/www/discourse/vendor/bundle/ruby/2.4.0/gems/sidekiq-5.0.5/lib/sidekiq/util.rb:25:in `block in safe_thread'
```
If it’s relevant, my subject string is:
`%{optional_re} [%{site_name}] %{optional_pm}%{optional_cat}%{topic_title}`
---
### Author:  [@carlokok](https://meta.discourse.org/u/carlokok)
#### Post date: [February 27, 2018, 8:50am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/4 "2018-02-27T08:50:29Z")
Slight update: It _seems_ this is always with 1 specific user being involved, created from sso.
---
### Author:  [@tgxworld](https://meta.discourse.org/u/tgxworld)
#### Post date: [March 2, 2018, 2:10am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/5 "2018-03-02T02:10:10Z")
Looks like it is introduced in [this commit](https://github.com/discourse/discourse/commit/5d9d0fcb4f3829297e8546b10381b58d3699ca55) where there is a chance for `@opts[:subject_pm]` to be `nil`
>
@LeoMcA I’m not sure what was the intended value if the topic doesn’t have any allowed groups. Probably just should be `I18n.t('subject_pm')`?
---
### Author:  [@alehandrof](https://meta.discourse.org/u/alehandrof)
#### Post date: [March 10, 2018, 3:42pm UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/6 "2018-03-10T15:42:39Z")
I ran across this bug as well.
Unsetting [this setting](https://example.com/admin/site_settings/category/all_results?filter=email+subject):
Allowed me to send all the failed retries.
Edit: I’d linked to my system here, which indicates how frazzled I was at the time 😃
---
### Author:  [@codinghorror](https://meta.discourse.org/u/codinghorror)
#### Post date: [March 11, 2018, 2:47am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/7 "2018-03-11T02:47:16Z")
This needs a fix @LeoMcA
---
### Author:  [@LeoMcA](https://meta.discourse.org/u/LeoMcA)
#### Post date: [March 11, 2018, 12:25pm UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/8 "2018-03-11T12:25:17Z")
Apologies, been rammed with work lately. This should fix it, and adds the test I missed first time:
[https://github.com/discourse/discourse/pull/5666](https://github.com/discourse/discourse/pull/5666)
---
### Author:  [@carlokok](https://meta.discourse.org/u/carlokok)
#### Post date: [March 12, 2018, 9:58am UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/9 "2018-03-12T09:58:30Z")
Wanted to confirm that this fixes it for me. Thanks @LeoMcA
---
### Author:  [@tgxworld](https://meta.discourse.org/u/tgxworld)
#### Post date: [March 12, 2018, 11:04pm UTC](https://meta.discourse.org/t/getting-type-errors-in-sidekiq-queue/81287/10 "2018-03-12T23:04:20Z")