TypeError: Cannot read properties of undefined (reading 'score')

[nmcltpx]

Describe the bug

When running Unlighthouse as CLI or CI on my local machine, it progresses well for quite a while, and then fails with the following error: (note: user and site details anonymised)

[error] [Unlighthouse] Failed to run lighthouse for route Command timed out after 360000 milliseconds: node /path/to/unlighthouse/node_modules/@unlighthouse/core/dist/process/lighthouse.mjs --cache=true --routeReport={"route":{"url":"https://www.domain.uk/path/path/path/page"},"artifactPath":"/path/to/unlighthouse/.unlighthouse-ci/reports/reportdir/reportdir2/reportdir3/reportpart"} --lighthouseOptions={"onlyCategories":["performance","accessibility","best-practices","seo"],"disableStorageReset":true,"skipAboutBlank":true,"throttlingMethod":"provided","throttling":{"rttMs":0,"throughputKbps":0,"cpuSlowdownMultiplier":1,"requestLatencyMs":0,"downloadThroughputKbps":0,"uploadThroughputKbps":0},"formFactor":"desktop","screenEmulation":{"mobile":false,"width":1350,"height":940,"deviceScaleFactor":1,"disabled":false},"emulatedUserAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36"} --port=58705

  Timed out
  at timeoutKill (node_modules/execa/lib/kill.js:60:23)
  at Timeout._onTimeout (node_modules/execa/lib/kill.js:72:4)
  at listOnTimeout (node:internal/timers:569:17)
  at process.processTimers (node:internal/timers:512:7)
file:///path/to/unlighthouse/node_modules/@unlighthouse/core/dist/index.mjs:986
          if (response.report.score)
                              ^

TypeError: Cannot read properties of undefined (reading 'score')
    at file:///path/to/unlighthouse/node_modules/@unlighthouse/core/dist/index.mjs:986:31

This is my config (domain anonymised):

import { defineConfig } from 'unlighthouse'

// Is command unlighthouse or unlighthouse-ci?
const isCI = process.env.CI === 'true';

export default defineConfig({
  puppeteerOptions: {
    timeout: 18000000,
    headless: true,
    dumpio: false,
  },
  puppeteerClusterOptions: {
    concurrency: 1,
    timeout: 180000000,
  },
  server: {
    open: false
  },
  site: 'https://www.domain.uk',
  debug: true,
  cache: true,
  outputPath: isCI ? '.unlighthouse-ci' : '.unlighthouse',
  lighthouseOptions: {
    disableStorageReset: true,
    skipAboutBlank: true,
    throttlingMethod: 'provided',
     throttling:
      { rttMs: 0,
        throughputKbps: 0,
        cpuSlowdownMultiplier: 1,
        requestLatencyMs: 0,
        downloadThroughputKbps: 0,
        uploadThroughputKbps: 0 },
     formFactor: 'desktop',
     screenEmulation:
      { mobile: false, width: 1350, height: 940, deviceScaleFactor: 1, disabled: false },
     emulatedUserAgent:
      'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36',
  },
  scanner: {
    dynamicSampling: 10,
    skipJavascript: true,
    robotsTxt: false,
    sitemap: false,
    crawler: true,
    samples: 3,
    maxRoutes: 1000,
    device: 'mobile',
    throttle: false,
    exclude: [
      '**/multimedia/**',
      '/fonts/**',
      '/api/**',
      '**/search-api/**',
      '/group/*',
      '/router/**',
      '/route/**',
      '/node/**',
      '**/*.pdf',
      '**/*.doc',
      '**/*.docx',
      '**/*.rtf',
      '**/*.xls',
      '**/*.xlsx',
      '**/*.mp4',
      '**/*.avix',
    ],
  },
  ci: {
    // @ts-expect-error - This is a valid reporter
    reporter: 'csvExpanded',
  },
  hooks: {
    'resolved-config': function (config) {
      // Add byte weight column to report
      config.client.columns.performance.push({
        cols: 1,
        label: 'Byte Weight',
        tooltip: 'Total Byte Weight',
        sortKey: 'numericValue',
        key: 'report.audits.total-byte-weight',
      });

      // Reduce CLS column width to 1
      const clsColumn = config.client.columns.performance.find(
        (col) => col.key === 'report.audits.cumulative-layout-shift');
      if (clsColumn) {
        clsColumn.cols = 1;
      }
    },
    'task-complete': function (path, results) {
      if (results.report?.audits) {
        // CSV export excludes "informative" audits by default
        results.report.audits['total-byte-weight']['scoreDisplayMode'] = 'numeric';
        // Make byte weight clearer in web report.
        const byteWeight = results.report.audits['total-byte-weight'].numericValue;
        if (byteWeight) {
          results.report.audits['total-byte-weight']['displayValue'] = (byteWeight / 1024).toLocaleString(undefined, {
            maximumFractionDigits: 1,
            minimumFractionDigits: 1,
          }) + '  KiB';
        }
      }
    },
    'route-definitions-provided' : function (routes) {
      console.log(routes);
    }
  }
})

Has anyone any ideas as to what might be causing this?

Many thanks

Reproduction

Ran with command: npm run unlighthouse-ci --config-file /path/to/unlighthouse/unlighthouse.config.ts --debug

System / Nuxt Info

No response

[nmcltpx]

I wonder if this is be a timeout from Lighthouse itself, not returning the score to unlighthouse.
If so, what can be done to mitigate it?

[nmcltpx]

Is there any chance this fix can be rolled into a release? I am hitting this problem each time I run it.
Thanks

[harlan-zw]

Hi, sorry for the delay. Please try out the latest version 0.13.3 🙂