# Plugin "Duplicate export" error after Discourse update

**URL:** https://meta.discourse.org/t/plugin-duplicate-export-error-after-discourse-update/398882
**Category:** Development
**Tags:** plugin-api
**Created:** [March 20, 2026, 1:31pm UTC](https://meta.discourse.org/t/plugin-duplicate-export-error-after-discourse-update/398882 "2026-03-20T13:31:32Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Lilly](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/lilly/32/575047_2.png) [@Lilly](https://meta.discourse.org/u/Lilly)
#### Post date: [March 20, 2026, 1:40pm UTC](https://meta.discourse.org/t/plugin-duplicate-export-error-after-discourse-update/398882/2 "2026-03-20T13:40:39Z")

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looks like it may be related to this?

> [@Introducing a new build system for plugins](https://meta.discourse.org/t/introducing-a-new-build-system-for-plugins/398713):
>
> Over the last few months, we’ve been working on a new build system for plugin JavaScript code. This will bring plugins up-to-date with the changes we made to the theme build system back in July 2025, which lean on more modern browser technologies and JS build tooling. This change is largely backwards-compatible. Most plugin authors won’t need to do anything. tadaBenefits As well as the behind-the-scenes modernization, this change will bring a number of functional benefits to Discourse devel…

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