Reported on `hewiki`.
```* `'.newcomer_task_token' should be string`
$schema /error/1.0.0* `'.homepage_pageview_token' should be string, '`
@timestamp May 13, 2021 @ 19:48:05.104* `' should have required property 'newcomer_task_token'`
@version 1
```
===== Errors =====
(1)
```name=normalized_message
'.newcomer_task_token' should be string
```
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2021-05-12T20:03:51.286Z',to:'2021-05-13T20:03:51.286Z'))&_a=(query:(query_string:(query:'reqId:%22undefined%22'))) | Find reqId in Logstash ]]
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:now-30d,to:now))&_a=(query:(query_string:(query:'normalized_message:%22'.newcomer_task_token'%20should%20be%20string%22'))) | Find normalized_message in Logstash ]]
```
name=exception.trace,lines=10
{"action":"impression","action_data":"dont_show_again=false","is_mobile":true,"newcomer_task_token":null,"page_id":763412,"page_title":"ברנארד לי","homepage_pageview_token":"2c9ai6inadsl7h4odoqn5nm3spr9cfv6","active_interface":"onboarding_step_1_dialog","$schema":"/analytics/mediawiki/structured_task/article/link_suggestion_interaction/1.0.0","meta":{"stream":"mediawiki.structured_task.article.link_suggestion_interaction","domain":"he.wikipedia.org","id":"ef4a04c1-b825-45aa-9b2b-7155f9de957c","dt":"2021-05-13T19:42:04.061Z","request_id":"7bd4b7ad-9edc-4f6f-9dbe-fae491273f04"},"dt":"2021-05-13T19:42:02.509Z","http":{"request_headers":{"user-agent":"Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1"}}}
```
(2)
```name=normalized_message
'.homepage_pageview_token' should be string, '' should have required property 'newcomer_task_token'
```
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:'2021-05-12T20:11:58.513Z',to:'2021-05-13T20:11:58.513Z'))&_a=(query:(query_string:(query:'reqId:%22undefined%22'))) | Find reqId in Logstash ]]
* [[ https://logstash.wikimedia.org/app/dashboards#/view/AXFV7JE83bOlOASGccsT?_g=(time:(from:now-30d,to:now))&_a=(query:(query_string:(query:'normalized_message:%22'.homepage_pageview_token'%20should%20be%20string,%20''%20should%20have%20required%20property%20'newcomer_task_token'%22'))) | Find normalized_message in Logstash ]]
```
name=exception.trace,lines=10
{"action":"impression","action_data":"dont_show_again=false","is_mobile":true,"page_id":1983583,"page_title":"המהומות בישראל ברמדאן 2021","homepage_pageview_token":null,"active_interface":"onboarding_step_1_dialog","$schema":"/analytics/mediawiki/structured_task/article/link_suggestion_interaction/1.0.0","meta":{"stream":"mediawiki.structured_task.article.link_suggestion_interaction","domain":"he.wikipedia.org","id":"006005bb-903b-4a29-a093-e8f1a339fab8","dt":"2021-05-13T19:48:04.058Z","request_id":"3d6bc452-92b6-49a3-a81e-21cf0b096877"},"dt":"2021-05-13T19:47:39.619Z","http":{"request_headers":{"user-agent":"Mozilla/5.0 (Linux; Android 10; Redmi Note 9 Pro) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36"}}}
```