# With Uncaught (in promise) Could not evaluate in iframe, doesnt exist!

**URL:** <https://forum.builder.io/t/with-uncaught-in-promise-could-not-evaluate-in-iframe-doesnt-exist/4906>\
**Category:** Visual Editor Help\
**Tags:** visual-editor, react, nextjs\
**Created:** [February 1, 2024, 9:05am UTC](https://forum.builder.io/t/with-uncaught-in-promise-could-not-evaluate-in-iframe-doesnt-exist/4906 "2024-02-01T09:05:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![heejin](https://avatars.discourse-cdn.com/v4/letter/h/a3d4f5/32.png) [@heejin](https://forum.builder.io/u/heejin)\
**Post date:** [February 1, 2024, 9:05am UTC](https://forum.builder.io/t/with-uncaught-in-promise-could-not-evaluate-in-iframe-doesnt-exist/4906/1 "2024-02-01T09:05:39Z")

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_Please fill out as many of the following questions as possible so we can help you promptly! If you don’t know how to answer or it does not apply, feel free to remove it or leave it blank._

**Builder content link**  
_e.g. [Builder.io: Visual Development Platform](http://builder.io/content/4cab34394e684fe7b93d6ef5493a8a51)_  
[Builder.io: Visual Development Platform](https://builder.io/content/2b60861209fb479d8c400509a0ea7e4e)

**Builder public api key**  
_go to [Builder.io: Visual Development Platform](https://builder.io/account/organization) and copy your PUBLIC api key_  
92a47a2413fa474d8b1e37772caa85de

**What are you trying to accomplish**  
_e.g. I want to integrate builder on a landing page_  
I can see the preview page but a drag-and-drop thing doesn’t work at all  
when I check the layers panel, the components are added and query parameters attached, but whenever I clicking the components, but its not being shown on the preview.  
when I see the dev console, I see error messages like this:

- Attestation check for Topics on [https://builder.io/](https://builder.io/) failed.
- Uncaught (in promise) Could not evaluate in iframe, doesnt exist!  
how should I try to resolve the issue?

**Screenshots or video link**  
_Screenshots of your issue, or even better a link to a video of what is happening or what you are trying to accomplish. We love using loom for that sort of thing_

**Code stack you are integrating Builder with**  
_e.g. NextJS, react, Shopify_  
nextjs14, react18

**Reproducible code example**  
_If you are having integration errors, please link to codesandbox or copy and paste your problematic code here. The more detail the better!_

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<div class="post-metadata">

**Author:** ![sheema](https://avatars.discourse-cdn.com/v4/letter/s/e19adc/32.png) [@sheema](https://forum.builder.io/u/sheema)\
**Post date:** [February 2, 2024, 11:19am UTC](https://forum.builder.io/t/with-uncaught-in-promise-could-not-evaluate-in-iframe-doesnt-exist/4906/2 "2024-02-02T11:19:29Z")

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Hey @heejin this looks like an issue with how you have named your page model. You need to change the model name in your integration code. Update BuilderComponent and builder.get call modal name to “test-page”.

 ![Screenshot 2024-02-02 at 4.41.31 PM](https://us1.discourse-cdn.com/flex020/uploads/builder/original/2X/3/3b125db722ac91c5821cd3f31be72018d13fc4d2.png)

 ![Screenshot 2024-02-02 at 4.41.40 PM](https://us1.discourse-cdn.com/flex020/uploads/builder/original/2X/0/08d672fe421cbaad68cafe9a925a8897b59cda43.png)

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<div class="post-metadata">

**Author:** ![heejin](https://avatars.discourse-cdn.com/v4/letter/h/a3d4f5/32.png) [@heejin](https://forum.builder.io/u/heejin)\
**Post date:** [February 5, 2024, 1:17am UTC](https://forum.builder.io/t/with-uncaught-in-promise-could-not-evaluate-in-iframe-doesnt-exist/4906/3 "2024-02-05T01:17:29Z")

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Yeah you’re right. Seems like in the app router document sample code ([Integrating Sections - Builder.io](https://www.builder.io/c/docs/integrate-section-building)) the BuilderComponent is missing model props so it’d be better to be updated it for other people. Thanks!