[#47805] - [6.2] Administrator article/category editing fails due to missing TinyMCE asset
- Closed
- 8 Jun 2026
- Medium
- Build: 5.4-dev
- # 47805
What happened?
Steps to reproduce
- Install Joomla 6.2.0-alpha-dev.
- Log in to the administrator backend.
- Navigate to Content → Articles → New or open an existing article for editing.
- Navigate to Content → Categories → New or open an existing category for editing.
Observed behavior
The page fails to load and shows the following error:
There is no "tinymce" asset of a "script" type in the registry.
This prevents administrators from creating or editing articles and categories.
Version
6.2
Expected result
The article/category editor form should load normally with the configured editor (TinyMCE) available, allowing administrators to create or edit content.
Actual result
Instead of loading the editor form, Joomla throws an application error:
There is no "tinymce" asset of a "script" type in the registry.
As a result, content creation and editing in the administrator backend is blocked.
System Information
- Joomla Version: 6.2-dev
- PHP Version: 8.4
- Database: MySQL 9.4
- Web Server: NGINX
- Operating System: Windows 11
- Browser: Microsoft Edge / Chrome / Brave
Additional Comments
This issue occurs consistently for both article and category create/edit pages.
The error suggests that the TinyMCE script asset is not being properly registered in the Web Asset Manager before the editor is rendered.
joomla-cms-bot
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Try to make the Default Editor to TinyMCE and check it again
I downloaded the 6.2 alpha from https://developer.joomla.org/nightly-builds.html
After installation I have no problem using tinymce
I downloaded the 6.2 alpha from https://developer.joomla.org/nightly-builds.html After installation I have no problem using tinymce
I actually downloaded the official 6.2-dev build from that link and it worked fine
The issue happens when I use the project repository, apply the patch from #47793 , then run npm ci locally. After that I keep getting the TinyMCE asset error when creating or editing articles/categories
I tried doing the whole setup from scratch more than once and got the same result, so I’m not sure if I’m missing something in the local build process
but if no one has the issue, I will close it
I downloaded the 6.2 alpha from https://developer.joomla.org/nightly-builds.html After installation I have no problem using tinymce
I actually downloaded the official 6.2-dev build from that link and it worked fine
The issue happens when I use the project repository, apply the patch from #47793 , then run npm ci locally. After that I keep getting the TinyMCE asset error when creating or editing articles/categories
the problem only happens for 6.2-dev but the other versions works fine
I tried doing the whole setup from scratch more than once and got the same result, so I’m not sure if I’m missing something in the local build process
but if no one has the issue, I will close it
Thanks for raising this issue.
I need some further information from you to determine if this is an issue with the build script or with your specific setup. Please answer the following:
- After fetching the
6.2-devbranch and before runningnpm ci, is the file located here available: https://github.com/joomla/joomla-cms/blob/6.2-dev/media_source/plg_editors_tinymce/joomla.asset.json? - If condition one is okay, after running
npm ci, are there any errors visible in the log? - If condition one is okay, after running
npm ci, is the filemedia/plg_editors_tinymce/joomla.asset.jsonpresent? If so, please copy or upload that generated file here.
-
Yes, the file is available before running
npm ci. -
Before applying the patch from #47793, the build failed in
plg_editors_codemirror. After applying the patch,npm cicompleted successfully with no errors:
added 807 packages, and audited 808 packages -
After
npm ci, the filemedia/plg_editors_tinymce/joomla.asset.jsonis not present. Inmedia/plg_editors_tinymce, I only see thecssandjsdirectories.
| Status | New | ⇒ | Closed |
| Closed_Date | 0000-00-00 00:00:00 | ⇒ | 2026-06-08 22:33:53 |
| Closed_By | ⇒ | Reda-Muhamed |
to solve this Issu, update your node version
to solve this Issue, update your node version
I think you just need to redownload the npm packages.
Currently
npm cihave problems on windows, so you can use this link: https://artifacts.joomla.org/drone/joomla/joomla-cms/6.2-dev/44371/downloads/93595/The articles and categories are working correctly.