Application error: a clien-side exception has ocurred (see the browser console for more information).

[edmilicich]

Summary

Hi everyone!

I'm experiencing a temporary crash in my frontend after deploying a Next.js 14 application to AWS. Right after the deployment finishes, the app briefly shows this error in the browser:

"Application error: a client-side exception has occurred (see the browser console for more information)."

The issue disappears after a few seconds, and the app works as expected afterward. However, this glitch affects the user experience during deploys.

I'm using Next.js 14 and deploying to AWS (not Vercel).

Has anyone else run into this issue? Any ideas on how to prevent this temporary client-side error post-deploy?

Additional information

No response

Example

No response

[icyJoseph]

I wonder if this is skew version related. Your app is trying to load some assets, that no longer exist after you deployed.

• https://nextjs.org/docs/app/guides/self-hosting#version-skew

How are you deploying exactly?

[edmilicich]

We deploy to ECS, HA, with rolling update deployment strategy