Issue with Experimental PPR in Next.js 15

[KaziShahHamza]

Summary

I’m running into an issue with my Next.js project. Initially, I was using Next.js 15, but when I encountered some problems, ChatGPT suggested installing the canary version. So, I installed the latest canary version ([email protected]) using:

npm install next@canary --legacy-peer-deps
However, when I try to start the dev server (npm run dev), I get the error below:

Additional information

nextjs-15@0.1.0 predev
npm run typegen


nextjs-15@0.1.0 typegen
sanity schema extract --path=./sanity/extract.json && sanity typegen generate

✓ Extracted schema to ./sanity/extract.json
✓ Generated TypeScript types for 14 schema types and 0 GROQ queries in 0 files into: ./sanity/types.ts 

nextjs-15@0.1.0 dev
next dev

node:internal/process/promises:289
            triggerUncaughtException(err, true /* fromPromise /);
            ^

[CanaryOnlyError: The experimental feature "experimental.ppr" can only be enabled when using the latest canary version of Next.js.]

Node.js v20.14.0

// this is my next.config file:
import type { NextConfig } from "next";

const nextConfig: NextConfig = {
  images: {
    dangerouslyAllowSVG: true,
    remotePatterns: [
      {
        protocol: "https",
        hostname: "",
      },
    ],
  },
  experimental: {
    ppr: "incremental",
  },
  devIndicators: {
    appIsrStatus: true,
    buildActivity: true,
    buildActivityPosition: "bottom-right",
  },
};

export default nextConfig;

Example

No response

[dev-kraken]

I tested your repository and encountered the same issue. However, I was able to resolve it by installing the Canary version with the --force flag. Here's the command I used:

npm install next@canary --force

Additional Considerations

Keep in mind that since PPR is an experimental feature, it may have bugs or instability issues. Use it cautiously, especially in production environments.

For further details on using Partial Prerendering and other experimental features, refer to the official Next.js documentation.

[KaziShahHamza]

wow! thanks, its working

[Arkamit]

This worked. Thanks.