Storybook error with latest NextJS 15 release and React 19 RC

[mzavattaro]

There's a dependency conflict between Storybook, NextJS 15 and React 19 RC:

Just flagging for future bug fixing.

[ixartz]

Unfortunately, I got the same error as you. I also wanted to update to Next.js 15 and React 19 RC.

But, it seems we need to wait Storybook support. Maybe also other dependencies.

We should be able to track the progress here: storybookjs/storybook#29421

[ixartz]

For reference, Next.js 15 introduce new bugs: amannn/next-intl#1442 and vercel/next.js#69000 (comment)

[mzavattaro]

Good to know, seems like they've got a fair bit of cleaning up to do.

[ixartz]

It's a really big update and a lot of breaking changes.

Even if the project doesn't use Shadcn UI, I also hear there are a lot of issue with Shadcn UI.

Definitively, not a smooth update 😢