dx: Include path count in export error message

[devjiwonchoi]

No description provided.

[devjiwonchoi]

• dx: Include path count in export error message #88910 👈 (View in Graphite)
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[nextjs-bot]

Failing test suites

Commit: 288dc6d | About building and testing Next.js

pnpm test-start-turbo test/production/app-dir/build-output-prerender/build-output-prerender.test.ts (turbopack) (job)

• build-output-prerender > with a next config file > with --debug-prerender > shows all prerender errors with readable stacks and code frames (DD)

Expand output

● build-output-prerender › with a next config file › with --debug-prerender › shows all prerender errors with readable stacks and code frames

expect(received).toMatchInlineSnapshot(snapshot)

Snapshot name: `build-output-prerender with a next config file with --debug-prerender shows all prerender errors with readable stacks and code frames 1`

- Snapshot  - 1
+ Received  + 1

@@ -17,8 +17,8 @@
    14 | }
    15 |
  To get a more detailed stack trace and pinpoint the issue, start the app in development mode by running `next dev`, then open "/server" in your browser to investigate the error.
  Error occurred prerendering page "/server". Read more: https://nextjs.org/docs/messages/prerender-error

- > Export encountered errors on following paths:
+ > Export encountered errors on following 2 paths:
  	/client/page: /client
  	/server/page: /server"

  194 |       it('shows all prerender errors with readable stacks and code frames', async () => {
  195 |         if (isTurbopack) {
> 196 |           expect(getPrerenderOutput(next.cliOutput)).toMatchInlineSnapshot(`
      |                                                      ^
  197 |            "Error: Route "/client" used \`new Date()\` inside a Client Component without a Suspense boundary above it. See more info here: https://nextjs.org/docs/messages/next-prerender-current-time-client
  198 |                at Page (app/client/page.tsx:4:28)
  199 |              2 |

  at Object.toMatchInlineSnapshot (production/app-dir/build-output-prerender/build-output-prerender.test.ts:196:54)

[vercel]

Additional Suggestion:

Snapshot tests expect old error message format 'Export encountered errors on following paths:' but code now produces 'Export encountered errors on following 1 path:' or 'paths:' with dynamic count.

[nextjs-bot]

Stats from current PR

✅ No significant changes detected

📊 All Metrics

📖 Metrics Glossary

Dev Server Metrics:

• Listen = TCP port starts accepting connections
• First Request = HTTP server returns successful response
• Cold = Fresh build (no cache)
• Warm = With cached build artifacts

Build Metrics:

• Fresh = Clean build (no .next directory)
• Cached = With existing .next directory

Change Thresholds:

• Time: Changes < 50ms AND < 10%, OR < 2% are insignificant
• Size: Changes < 1KB AND < 1% are insignificant
• All other changes are flagged to catch regressions

⚡ Dev Server

Metric	Canary	PR	Change	Trend
Cold (Listen)	455ms	455ms	✓	▁▁▁▁▁
Cold (Ready in log)	440ms	440ms	✓	▁▂▁▁▁
Cold (First Request)	1.182s	1.195s	✓	▁▃▂▁▃
Warm (Listen)	457ms	456ms	✓	▁▁▁▂▁
Warm (Ready in log)	444ms	443ms	✓	▁▁▁▁▁
Warm (First Request)	342ms	345ms	✓	▂▁▁▂▂

📦 Dev Server (Webpack) (Legacy)

📦 Dev Server (Webpack)

Metric	Canary	PR	Change	Trend
Cold (Listen)	456ms	455ms	✓	▁▁▁▁▁
Cold (Ready in log)	436ms	436ms	✓	▁▁▁▁▁
Cold (First Request)	1.828s	1.841s	✓	▁▁▁▁▁
Warm (Listen)	457ms	456ms	✓	▁▁▁▁▁
Warm (Ready in log)	435ms	435ms	✓	▁▁▁▁▁
Warm (First Request)	1.827s	1.831s	✓	▁▁▁▁▁

⚡ Production Builds

Metric	Canary	PR	Change	Trend
Fresh Build	4.344s	4.393s	✓	▁▁▁▂▁
Cached Build	4.363s	4.339s	✓	▁▁▁▁▁

📦 Production Builds (Webpack) (Legacy)

📦 Production Builds (Webpack)

Metric	Canary	PR	Change	Trend
Fresh Build	13.893s	13.967s	✓	▄▂▂▂▂
Cached Build	14.080s	14.063s	✓	▄▄▂▂▁
node_modules Size	460 MB	460 MB	✓	▁▁▁▁▁

📦 Bundle Sizes

Bundle Sizes

⚡ Turbopack

Client

Main Bundles: **432 kB** → **432 kB** ✅ -58 B

82 files with content-based hashes (individual files not comparable between builds)

Server

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	761 B	769 B	🔴 +8 B (+1%)
Total	761 B	769 B	⚠️ +8 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	451 B	450 B	✓
Total	451 B	450 B	✅ -1 B

📦 Webpack

Client

Main Bundles

	Canary	PR	Change
2086.HASH.js gzip	169 B	N/A	-
2161-HASH.js gzip	5.41 kB	N/A	-
2747-HASH.js gzip	4.48 kB	N/A	-
4322-HASH.js gzip	52.7 kB	N/A	-
ec793fe8-HASH.js gzip	62.3 kB	N/A	-
framework-HASH.js gzip	59.8 kB	59.8 kB	✓
main-app-HASH.js gzip	251 B	253 B	✓
main-HASH.js gzip	38.7 kB	39.1 kB	✓
webpack-HASH.js gzip	1.68 kB	1.68 kB	✓
1596.HASH.js gzip	N/A	169 B	-
2658-HASH.js gzip	N/A	52.4 kB	-
6349-HASH.js gzip	N/A	4.46 kB	-
7019-HASH.js gzip	N/A	5.43 kB	-
b17a3386-HASH.js gzip	N/A	62.3 kB	-
Total	226 kB	226 kB	⚠️ +54 B

Polyfills

	Canary	PR	Change
polyfills-HASH.js gzip	39.4 kB	39.4 kB	✓
Total	39.4 kB	39.4 kB	✓

Pages

	Canary	PR	Change
_app-HASH.js gzip	194 B	193 B	✓
_error-HASH.js gzip	182 B	182 B	✓
css-HASH.js gzip	336 B	335 B	✓
dynamic-HASH.js gzip	1.8 kB	1.8 kB	✓
edge-ssr-HASH.js gzip	256 B	256 B	✓
head-HASH.js gzip	352 B	349 B	✓
hooks-HASH.js gzip	385 B	384 B	✓
image-HASH.js gzip	580 B	580 B	✓
index-HASH.js gzip	259 B	258 B	✓
link-HASH.js gzip	2.5 kB	2.51 kB	✓
routerDirect..HASH.js gzip	319 B	317 B	✓
script-HASH.js gzip	385 B	387 B	✓
withRouter-HASH.js gzip	316 B	315 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Total	7.97 kB	7.96 kB	✅ -8 B

Server

Edge SSR

	Canary	PR	Change
edge-ssr.js gzip	126 kB	126 kB	✓
page.js gzip	244 kB	240 kB	🟢 4.72 kB (-2%)
Total	370 kB	366 kB	✅ -4.59 kB

Middleware

	Canary	PR	Change
middleware-b..fest.js gzip	617 B	618 B	✓
middleware-r..fest.js gzip	155 B	156 B	✓
middleware.js gzip	33 kB	33.1 kB	✓
edge-runtime..pack.js gzip	842 B	842 B	✓
Total	34.6 kB	34.8 kB	⚠️ +144 B

Build Details

Build Manifests

	Canary	PR	Change
_buildManifest.js gzip	738 B	738 B	✓
Total	738 B	738 B	✓

Build Cache

	Canary	PR	Change
0.pack gzip	3.71 MB	3.72 MB	🔴 +9.98 kB (+0%)
index.pack gzip	101 kB	101 kB	✓
index.pack.old gzip	101 kB	102 kB	✓
Total	3.92 MB	3.93 MB	⚠️ +10.9 kB

🔄 Shared (bundler-independent)

Runtimes

	Canary	PR	Change
app-page-exp...dev.js gzip	306 kB	306 kB	✓
app-page-exp..prod.js gzip	163 kB	163 kB	✓
app-page-tur...dev.js gzip	306 kB	306 kB	✓
app-page-tur..prod.js gzip	163 kB	163 kB	✓
app-page-tur...dev.js gzip	302 kB	302 kB	✓
app-page-tur..prod.js gzip	161 kB	161 kB	✓
app-page.run...dev.js gzip	303 kB	303 kB	✓
app-page.run..prod.js gzip	161 kB	161 kB	✓
app-route-ex...dev.js gzip	69.4 kB	69.4 kB	✓
app-route-ex..prod.js gzip	48.2 kB	48.2 kB	✓
app-route-tu...dev.js gzip	69.4 kB	69.4 kB	✓
app-route-tu..prod.js gzip	48.2 kB	48.2 kB	✓
app-route-tu...dev.js gzip	69 kB	69 kB	✓
app-route-tu..prod.js gzip	47.9 kB	47.9 kB	✓
app-route.ru...dev.js gzip	68.9 kB	68.9 kB	✓
app-route.ru..prod.js gzip	47.9 kB	47.9 kB	✓
dist_client_...dev.js gzip	324 B	324 B	✓
dist_client_...dev.js gzip	326 B	326 B	✓
dist_client_...dev.js gzip	318 B	318 B	✓
dist_client_...dev.js gzip	317 B	317 B	✓
pages-api-tu...dev.js gzip	42.4 kB	42.4 kB	✓
pages-api-tu..prod.js gzip	32.2 kB	32.2 kB	✓
pages-api.ru...dev.js gzip	42.4 kB	42.4 kB	✓
pages-api.ru..prod.js gzip	32.2 kB	32.2 kB	✓
pages-turbo....dev.js gzip	51.7 kB	51.7 kB	✓
pages-turbo...prod.js gzip	38.8 kB	38.8 kB	✓
pages.runtim...dev.js gzip	51.7 kB	51.7 kB	✓
pages.runtim..prod.js gzip	38.8 kB	38.8 kB	✓
server.runti..prod.js gzip	62.3 kB	62.3 kB	✓
Total	2.73 MB	2.73 MB	⚠️ +2 B