# Cannot write to a field alias Error URGENT

**URL:** <https://discuss.elastic.co/t/cannot-write-to-a-field-alias-error-urgent/202825>\
**Category:** Logstash\
**Created:** [October 9, 2019, 12:04pm UTC](https://discuss.elastic.co/t/cannot-write-to-a-field-alias-error-urgent/202825 "2019-10-09T12:04:26Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![khergner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/khergner/32/130758_2.png) [@khergner](https://discuss.elastic.co/u/khergner)\
**Post date:** [October 9, 2019, 12:04pm UTC](https://discuss.elastic.co/t/cannot-write-to-a-field-alias-error-urgent/202825/1 "2019-10-09T12:04:27Z")

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Hi everyone,  
I get the following error in logstash but ı don't understand why ı got an error. Can you help me for solution to problem?  
Elk & logstash & filebeat version 7.3.0  
I use shared to below filebeat template

> **[filebeat.template.json](https://drive.google.com/file/d/1ujWZRFPD7Ou1hgZGHMDQ8bZmrKkbO9fn/view?usp=sharing)**
>
> Google Drive file.

I send to elk

```
curl -XPUT -H 'Content-Type: application/json' http://elk:9200/_template/filebeat -d@filebeat.template.json

```

Logstash output

```
   output {
	elasticsearch {
	  hosts => localhost
	  manage_template => false
	  index => "%{[@metadata][beat]}-%{[@metadata][version]}-%{+YYYY.MM.dd}"
	}
  }
```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 6, 2019, 12:51pm UTC](https://discuss.elastic.co/t/cannot-write-to-a-field-alias-error-urgent/202825/3 "2019-11-06T12:51:29Z")

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