Basic NextJs website failing to build with exit code 129

Support
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1

I have been trying to deploy my lab’s website, but for some reason, the build command fails with exit code 129.

Link to repo

Log 
4:20:17 PM: Netlify Build                                                 
4:20:17 PM: ────────────────────────────────────────────────────────────────
4:20:17 PM: ​
4:20:17 PM: ❯ Version
4:20:17 PM:   @netlify/build 29.47.1
4:20:17 PM: ​
4:20:17 PM: ❯ Flags
4:20:17 PM:   baseRelDir: true
4:20:17 PM:   buildId: 66694c0e6787620008824e64
4:20:17 PM:   deployId: 66694c0e6787620008824e66
4:20:17 PM: ​
4:20:17 PM: ❯ Current directory
4:20:17 PM:   /opt/build/repo
4:20:17 PM: ​
4:20:17 PM: ❯ Config file
4:20:17 PM:   No config file was defined: using default values.
4:20:17 PM: ​
4:20:17 PM: ❯ Context
4:20:17 PM:   deploy-preview
4:20:18 PM: ​
4:20:18 PM: ❯ Using Next.js Runtime - v5.3.2
4:20:19 PM: No Next.js cache to restore
4:20:19 PM: ​
4:20:19 PM: Build command from Netlify app                                
4:20:19 PM: ────────────────────────────────────────────────────────────────
4:20:19 PM: ​
4:20:19 PM: $ yarn run build
4:20:21 PM: ⚠ No build cache found. Please configure build caching for faster rebuilds. Read more: https://nextjs.org/docs/messages/no-cache
4:20:21 PM:    ▲ Next.js 14.1.1
4:20:21 PM:    Creating an optimized production build ...
4:20:33 PM:  ✓ Compiled successfully
4:20:33 PM:    Linting and checking validity of types ...
4:20:36 PM:    Collecting page data ...
4:21:30 PM: ​
4:21:30 PM: "build.command" failed                                        
4:21:30 PM: ────────────────────────────────────────────────────────────────
4:21:30 PM: ​
4:21:30 PM:   Error message
4:21:30 PM:   Command failed with exit code 129: yarn run build (https://ntl.fyi/exit-code-129)
4:21:30 PM: ​
4:21:30 PM:   Error location
4:21:30 PM:   In Build command from Netlify app:
4:21:30 PM:   yarn run build
4:21:30 PM: ​
4:21:30 PM:   Resolved config
4:21:30 PM:   build:
4:21:30 PM:     command: yarn run build
4:21:30 PM:     commandOrigin: ui
4:21:30 PM:     environment:
4:21:30 PM:       - REVIEW_ID
4:21:30 PM:     publish: /opt/build/repo/.next
4:21:30 PM:     publishOrigin: ui
4:21:30 PM:   plugins:
4:21:30 PM:     - inputs: {}
4:21:30 PM:       origin: ui
4:21:30 PM:       package: '@netlify/plugin-nextjs'
4:21:34 PM: Build failed due to a user error: Build script returned non-zero exit code: 2
4:21:38 PM: Failed during stage 'building site': Build script returned non-zero exit code: 2 (https://ntl.fyi/exit-code-2)
4:21:38 PM: Failing build: Failed to build site
4:21:39 PM: Finished processing build request in 1m41.677s

I have tried setting the following environment variables in the Netlify UI but the error still persists:

  • NODE_VERSION to 20.14.0
  • YARN_VERSION to 4.0.2
  • NODE_ENV to --max-old-space-size=4096

I managed to build this website on Vercel and on my local machine, so the problem definitely has something to do with Netlify’s build environment. The sporadic information I could find online hints at an out-of-memory issue, but I don’t think that’s the case since this website is quite small and basic.

2

Your build went over the 11 GB memory limit:

image
image1621×584 31.9 KB

You can try setting:

experimental: {
  cpus: 1
}

in your next.config.js to reduce memory usage.

3

Thanks for the heads up!
May I ask how you managed to profile the build process?

4

Adding

const nextConfig = {
  experimental: {
    cpus: 1,
  },
}

to next.config.js and also changing nodeLinker: pnp to nodeLinker: node-modules in .yarnrc.yml helped complete the build process, but the deploy preview now crashes.

5

The graph is from our internal logs. As for the deploy preview crashing, that doesn’t seem to happen. Has that been resovled?