# Problems with Eclipse and Processing library

**URL:** <https://discourse.processing.org/t/problems-with-eclipse-and-processing-library/40382>\
**Category:** Processing\
**Created:** [December 31, 2022, 4:48am UTC](https://discourse.processing.org/t/problems-with-eclipse-and-processing-library/40382 "2022-12-31T04:48:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![bananana](https://avatars.discourse-cdn.com/v4/letter/b/848f3c/32.png) [@bananana](https://discourse.processing.org/u/bananana)\
**Post date:** [December 31, 2022, 4:48am UTC](https://discourse.processing.org/t/problems-with-eclipse-and-processing-library/40382/1 "2022-12-31T04:48:50Z")

</div>

I have a Processing Library that uses the standard Processing library template from [GitHub - processing/processing-library-template: Processing Library Template for Eclipse](https://github.com/processing/processing-library-template)

In the past it’s been fine to install Eclipse and setup the project but lately I bought a new ARM MacBook and I can’t get the project to compile in Eclipse. The issue is that it’s not adding the required .jar files to the compile process.

I added the new .jar files into the /lib folder in the eclipse workspace project, and the classpath.local.include option in build.properties includes them but Ant is throwing errors: “package com.sun.jna does not exist”

This is Processing4, OSX 12.3 and the jars are:  
jna-5.12.1.jar  
jna-platform-5.12.1.jar

Any ideas?