# I cant get Fusion to respond

**URL:** https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493
**Category:** Bugs
**Created:** [August 1, 2025, 12:18am UTC](https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493 "2025-08-01T00:18:32Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![captainmcblam](https://avatars.discourse-cdn.com/v4/letter/c/8e8cbc/32.png) [@captainmcblam](https://forum.builder.io/u/captainmcblam)
#### Post date: [August 1, 2025, 12:18am UTC](https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493/1 "2025-08-01T00:18:32Z")

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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.](https://builder.io/app/projects/c2ad97e2d85446799e5486eee7b3a599/main)_ [builder.io/content/4cab34394e684fe7b93d6ef5493a8a51](https://builder.io/app/projects/c2ad97e2d85446799e5486eee7b3a599/main)

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

**Detailed steps to reproduce the bug**  
_I asked Fusion to fix a bug and ever since, i am getting the error in the window and Fusion doesnt acknowledge my prompts. It repeats them but doesnt respond._

**Screenshots or video link**

 ![image](https://us1.discourse-cdn.com/flex020/uploads/builder/original/2X/a/a5cf5dd02bd4efa1f01a0ae08d4aeab4f4d26542.png)

**Code stack you are integrating Builder with**  
_Not sure_

**Reproducible code example** I dont know. Sorry.

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### Author: ![ParthSharma](https://avatars.discourse-cdn.com/v4/letter/p/a9adbd/32.png) [@ParthSharma](https://forum.builder.io/u/ParthSharma)
#### Post date: [August 1, 2025, 7:31am UTC](https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493/2 "2025-08-01T07:31:31Z")

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Hi Scott,

Your front-end and back-end ports are different, which is why you are getting an error on the UI. Check the screenshot below. Use the same port.

 ![Screenshot 2025-08-01 at 12.57.20 PM](https://us1.discourse-cdn.com/flex020/uploads/builder/original/2X/2/2f60fe9071fe98c7384ab275cf9f3bed9ddd5d78.png)

Frontend : 8080  
Backend : 3000

Thanks,

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<div class="post-metadata">

### Author: ![captainmcblam](https://avatars.discourse-cdn.com/v4/letter/c/8e8cbc/32.png) [@captainmcblam](https://forum.builder.io/u/captainmcblam)
#### Post date: [August 1, 2025, 7:42am UTC](https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493/3 "2025-08-01T07:42:55Z")

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But is that the reason why Fusion isn’t responding? You havent explained if the port issue is related to Fusion chat. I understand the port mismatch is throwing the error but what about the Fusion Chat issue?

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### Author: ![ParthSharma](https://avatars.discourse-cdn.com/v4/letter/p/a9adbd/32.png) [@ParthSharma](https://forum.builder.io/u/ParthSharma)
#### Post date: [August 1, 2025, 7:57am UTC](https://forum.builder.io/t/i-cant-get-fusion-to-respond/15493/4 "2025-08-01T07:57:58Z")

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Hi Scott,

It’s mostly related to the glitch or port mismatch. Could you confirm now whether Fusion chat is working for you?

Thanks,