Error: "Cannot read property 'length' of undefined"

[dzmitry-haawk]

Describe what you were doing when the bug occurred:
1.
2.
3.

---

Please do not remove the text below this line

DevTools version: 4.8.2-fed4ae024

Call stack: at getChartData (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:18061:32)
at ProfilingCache.getFlamegraphChartData (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:18301:14)
at CommitFlamegraphAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:31722:32)
at vh (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:11067:7)
at fi (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:11733:7)
at ck (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:14430:86)
at bk (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:13779:11)
at ak (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:13768:5)
at Sj (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:13750:7)
at Jj (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:13448:118)

Component stack: at CommitFlamegraphAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:31701:48)
at div
at div
at div
at SettingsModalContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:26139:23)
at Profiler_Profiler (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:33363:48)
at ErrorBoundary (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:27172:5)
at PortaledContent (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:27303:32)
at div
at div
at ProfilerContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:30463:23)
at TreeContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:22538:23)
at SettingsContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:23040:27)
at ModalDialogContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:28328:23)
at DevTools_DevTools (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:33797:21)

[bvaughn]

It doesn't look like this bug report has enough info for one of us to reproduce it.

Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a repository on GitHub, or provide a minimal code example that reproduces the problem. Screenshots or videos can also be helpful if they help provide context on how to repro the bug.

Here are some tips for providing a minimal example: https://stackoverflow.com/help/mcve

[armedev]

@dzmitry-haawk try to search for typos in your code. or you can provide screenshot of your code from CommitFlamegraphAutoSizer and make sure you have destructured the props properly.

[bvaughn]

@armedev The stack in the issue description shows an error being thrown by the React DevTools Profiler. Seems unlikely that it's an error caused by user-code. That being said, I'm not sure how to reproduce the case in which DevTools throws.

[bvaughn]

Resolved by #19987