# Please use UI.addCustomModal instead

**URL:** https://pdfjs.community/t/please-use-ui-addcustommodal-instead/3708
**Category:** Technical Support
**Tags:** pdfjs-express
**Created:** [May 25, 2025, 1:32am UTC](https://pdfjs.community/t/please-use-ui-addcustommodal-instead/3708 "2025-05-25T01:32:24Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![ufuk](https://avatars.discourse-cdn.com/v4/letter/u/6bbea6/32.png) [@ufuk](https://pdfjs.community/u/ufuk)
#### Post date: [May 25, 2025, 1:32am UTC](https://pdfjs.community/t/please-use-ui-addcustommodal-instead/3708/1 "2025-05-25T01:32:24Z")

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Hi,

I get this warning on Chrome. Is it ok?

I used last version download from.

```javascript
addCustomModal.js:82 'setCustomModal' deprecated since version 8.5. Please use UI.addCustomModal instead

```

 ![Screenshot 2025-05-25 at 04.31.24](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/a/ade5097829aaf4429a467100cdfaa9638a9853ce.png)

 ![Screenshot 2025-05-25 at 04.33.13](https://canada1.discourse-cdn.com/flex031/uploads/pdfjscommunity/original/2X/b/b753968425d90b2751945524ecb0548cd5480f7a.png)

Document link

> **[EKLER](https://zolatest-2uf.pages.dev/hakkinda/attach/)**
>
> EKLER

Thanks

---

<div class="post-metadata">

### Author: ![kkim](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@kkim](https://pdfjs.community/u/kkim)
#### Post date: [May 26, 2025, 2:32pm UTC](https://pdfjs.community/t/please-use-ui-addcustommodal-instead/3708/3 "2025-05-26T14:32:56Z")

</div>

Hello Ufuk,  
Starting from version 8, the instance namespaces were split into Core and UI. For more information on these changes, please see our migration guide here: [Migrating to PDF.js Express 8.0 | Documentation](https://pdfjs.express/documentation/migration-guides/8.0-migration)

best regards,  
Kevin