Cannot install @sitecore-jss/sitecore-jss-nextjs with NextJS 15 without --legacy-peer-deps due to peer dependency on NextJS 14

[jkesseler]

Describe the Bug

• JSS Version: 22.4.1
• NextJS Version: 15.1.6

See packages/sitecore-jss-nextjs/package.json#L71

❯ npm i -S @sitecore-jss/sitecore-jss-nextjs@latest
npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error
npm error While resolving:[email protected]
npm error Found: [email protected]
npm error node_modules/next
npm error   next@"15.1.6" from the root project
npm error
npm error Could not resolve dependency:
npm error peer next@"^14.2.18" from @sitecore-jss/[email protected]
npm error node_modules/@sitecore-jss/sitecore-jss-nextjs
npm error   @sitecore-jss/sitecore-jss-nextjs@"22.4.1" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.

When using --force or --legacy-peer-deps installation works of course

To Reproduce

Run npm i -S @sitecore-jss/sitecore-jss-nextjs inside a NextJS 15 project

Expected Behavior

Runiing npm i -S @sitecore-jss/sitecore-jss-nextjs works without having to use the --force or --legacy-peer-deps flags

Possible Fix

No response

Provide environment information

• Sitecore Version:
• JSS Version:
• Browser Name and version:
• Operating System and version (desktop or mobile):
• Link to your project (if available):

[yavorsk]

Hi @jkesseler , latest jss-nextjs SDK is not yet compatible with Next 15. We have the ticket for upgrading to next 15 in our pipeline and we'll start working on it soon (although I can't provide specific timeline).