# Help in Test Listeners Plugin **URL:** \ **Category:** Integrations\ **Tags:** plugins, katalon-studio\ **Created:** [December 13, 2019, 2:56pm UTC](https://forum.katalon.com/t/help-in-test-listeners-plugin/37512 "2019-12-13T14:56:18Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Russ\_Thomas](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/russ_thomas/32/11884_2.png) [@Russ\_Thomas](https://forum.katalon.com/u/Russ_Thomas)\ **Post date:** [December 13, 2019, 3:06pm UTC](https://forum.katalon.com/t/help-in-test-listeners-plugin/37512/3 "2019-12-13T15:06:41Z")
Different question, but may help: > [@How to develop Custom Keywords Plugins](http://forum.katalon.com/t/how-to-develop-custom-keywords-plugins/20321/32): > > Hi @mytruong, Please download Katalon Studio v6.1.2 release: [https://github.com/katalon-studio/katalon-studio/releases](https://github.com/katalon-studio/katalon-studio/releases) and open a project with embedded the katalon-studio-ashot-plugin.jar, you will see the original error on Event Log tab: Caused by: java.lang.NoClassDefFoundError: Unable to load class kms.turing.katalon.plugins.visualtesting.ScreenCapture due to missing dependency ru/yandex/qatools/ashot/Screenshot at org.codehaus.groovy.vmplugin.v5.Java5.configureClassNode(Java5.java:421) a… And… > [@How to resolve external dependencies for a Plugin](http://forum.katalon.com/t/how-to-resolve-external-dependencies-for-a-plugin/21346): > > I have a question how to resolve external dependencies for a Plugin. I have a Custom Keyword named [com.kazurayam.ksbackyard.ScreenshotDriver](https://github.com/kazurayam/ksbackyard/blob/master/Keywords/com/kazurayam/ksbackyard/ScreenshotDriver.groovy). This enables you to take full-page screenshots of web pages. Another post [How to package Custom Keyword as Plugin](http://forum.katalon.com/t/how-to-package-custom-keyword-as-plugin/20321) showed us how to make a jar of custom keywords. Following this instruction, I could make a jar which contains the ScreenshotDriver class. My ScreenshotDriver class depends on an external Java library [aShot](https://mvnrepository.com/artifact/ru.yandex.qatools.ashot/ashot/1.5.4). How can I resolve the external depe… How to help yourself (use search) [http://forum.katalon.com/search?q=%22due%20to%20missing%20dependency%22&expanded=true](http://forum.katalon.com/search?q=%22due%20to%20missing%20dependency%22&expanded=true) --- _[View the full topic](https://forum.katalon.com/t/help-in-test-listeners-plugin/37512)._