# Cannot run getElementsCount in 8.1.0

**URL:** <https://forum.katalon.com/t/cannot-run-getelementscount-in-8-1-0/58907>\
**Category:** API Testing\
**Tags:** api-testing, katalon-studio\
**Created:** [October 5, 2021, 4:32pm UTC](https://forum.katalon.com/t/cannot-run-getelementscount-in-8-1-0/58907 "2021-10-05T16:32:15Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\
**Post date:** [October 13, 2021, 12:36am UTC](https://forum.katalon.com/t/cannot-run-getelementscount-in-8-1-0/58907/5 "2021-10-13T00:36:59Z")

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Same as this:

> [@LinkageError: loader constraint violation: when resolving field "NODE" the class loader (instance of org/codehaus/groovy/tools/RootLoader) of the referring class, javax/xml/xpath/XPathConstants,](http://forum.katalon.com/t/linkageerror-loader-constraint-violation-when-resolving-field-node-the-class-loader-instance-of-org-codehaus-groovy-tools-rootloader-of-the-referring-class-javax-xml-xpath-xpathconstants/59010/4):
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> See This reported that the “stax-api-1.0.1.jar” bundled in the v7.9.1 caused the problem LinkageError: loader constraint violation: when resolving field “NODE” … In the .classpath of @youssef.machkira I found a line: \<classpathentry kind="lib" path="D:/Katalon\_Studio\_Windows\_64-8.1.0/configuration/resources/lib/stax-api-1.0.1.jar"/\> So the error occured again due to the same reason as I reported previously. @youssef.machkira Please try removing the stax-api-1.0.1.jar from your Katalon …

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