[BUG yarn] Failed to prepare server Error: An error occurred while loading the instrumentation hook

[BilalJaved15]

Describe the bug

THIS IS NOT A DUPLICATE OF THIS ISSUE.

I tried Next JS version 15.4.x with npm as package manager, and it works fine. But when I try it with yarn, it doesn't work and gives the same error as the issue. I tried using pnp and node-modules as nodeLinker, but nothing works. This is my package.json:

{
  "name": "asset-hub",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "dev": "next dev",
    "build": "next build",
    "start": "next start",
    "lint": "next lint",
    "deploy:dev": "opennextjs-cloudflare build && wrangler deploy --env dev",
    "deploy:prod": "opennextjs-cloudflare build && wrangler deploy --env prod",
    "preview": "opennextjs-cloudflare build && opennextjs-cloudflare preview",
    "cf-typegen": "wrangler types --env-interface CloudflareEnv cloudflare-env.d.ts"
  },
  "dependencies": {
    "@opennextjs/cloudflare": "1.3.0",
    "@shared/constants": "workspace:*",
    "@shared/svg": "workspace:*",
    "@shared/types": "workspace:*",
    "@shared/ui": "workspace:*",
    "@shared/utils": "workspace:*",
    "autoprefixer": "10.4.21",
    "lodash.debounce": "4.0.8",
    "next": "15.4.6",
    "nextjs-toploader": "3.8.16",
    "phosphor-react": "1.4.1",
    "postcss": "8.5.6",
    "react": "19.0.0",
    "react-dom": "19.0.0",
    "react-intl": "7.1.11",
    "react-toastify": "11.0.5"
  },
  "devDependencies": {
    "@cloudflare/workers-types": "4.20250430.0",
    "@eslint/eslintrc": "3",
    "@svgr/webpack": "8.1.0",
    "@tailwindcss/postcss": "4",
    "@types/lodash.debounce": "4",
    "@types/node": "20",
    "@types/react": "19",
    "@types/react-dom": "19",
    "eslint": "9.39.1",
    "eslint-config-next": "15.3.1",
    "tailwindcss": "3.4.4",
    "typescript": "5.2.2",
    "wrangler": "4.45.3"
  }
}

Steps to reproduce

1. Run this command: yarn create cloudflare@latest -- my-next-app --framework=next --platform=workers
2. Create everything, it will fail with rclone build error.
3. Downgrade opennextjs/cloudflare to 1.3.0.
4. Run yarn install.
5. Deploy to Cloudflare.
6. You will get same error:

{
  "message": "Server failed to respond.",
  "details": {}
}

Expected behavior

Next JS Application should work on deployment.

@opennextjs/cloudflare version

1.3.0

Wrangler version

4.45.3

next info output

warn  - Failed to fetch latest canary version. (Reason: Failed to get registry from "yarn"..)
      Detected "15.4.6". Visit https://github.com/vercel/next.js/releases.
      Make sure to try the latest canary version (eg.: `npm install next@canary`) to confirm the issue still exists before creating a new issue.
      
Learn more: https://nextjs.org/docs/messages/opening-an-issue
This project is configured to use yarn because /temp/package.json has a "packageManager" field
This project is configured to use yarn because /temp/package.json has a "packageManager" field

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 25.0.0: Wed Sep 17 21:41:45 PDT 2025; root:xnu-12377.1.9~141/RELEASE_ARM64_T6000
  Available memory (MB): 16384
  Available CPU cores: 8
Binaries:
  Node: 20.19.5
  npm: 10.8.2
  Yarn: 4.5.0
  pnpm: N/A
Relevant Packages:
  next: 15.4.6
  eslint-config-next: N/A
  react: 19.0.0
  react-dom: 19.0.0
  typescript: 5.2.2
Next.js Config:
  output: N/A

Additional context

No response