# Logstash filter plugin development
**URL:** https://discuss.elastic.co/t/logstash-filter-plugin-development/284306
**Category:** Logstash
**Created:** [September 15, 2021, 3:44pm UTC](https://discuss.elastic.co/t/logstash-filter-plugin-development/284306 "2021-09-15T15:44:30Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@wssnetwork](https://discuss.elastic.co/u/wssnetwork)
#### Post date: [September 15, 2021, 3:44pm UTC](https://discuss.elastic.co/t/logstash-filter-plugin-development/284306/1 "2021-09-15T15:44:30Z")
Hello team. I would like to develop Logstash filter plugin. During build the gem file I got error as below:
```auto
FAILURE: Build failed with an exception.
* Where:
Script '/home/kali/github/logstash/rubyUtils.gradle' line: 212
* What went wrong:
A problem occurred evaluating script.
> Could not find method register() for arguments [downloadJRuby, class de.undercouch.gradle.tasks.download.Download, rubyUtils_4cq08gienihrpmy4hdmzlt5l8$_run_closure2@68dbfa04] on task set of type org.gradle.api.internal.tasks.DefaultTaskContainer.
```
1. At first I am suspect I could not reach the Maven repo, but I am able to reach there.
2. I try comment out versions.yml for **jruby-runtime-override:** but still no luck.
Really appreciate if you could share what I can do to fix this? I am using all latest repo from github for logstash, logstash-core and sample filter plugin.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [October 13, 2021, 3:45pm UTC](https://discuss.elastic.co/t/logstash-filter-plugin-development/284306/2 "2021-10-13T15:45:02Z")
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