Cannot open Timeline Events page on Windows

[Markus43]

I'd like to profile my Windows application from VS Code using Devtools' Performance view.

Whenever I select the page, I get a popup with the following error: Oops, something went wrong. Please file a bug. ✕ To assist with debugging please attach or link to the trace you were viewing.

Viewed on: http://127.0.0.1:9100

SecurityError: Failed to execute 'getDevices' on 'USB': Access to the feature "usb" is disallowed by permissions policy. Error: Failed to execute 'getDevices' on 'USB': Access to the feature "usb" is disallowed by permissions policy. at AdbOverWebUsb. (http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:290487:40) at Generator.next () at http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:156:71 at new Promise () at Object.__awaiter (http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:152:12) at AdbOverWebUsb.getPairedDevices (http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:290485:26) at http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:310036:59 at Generator.next () at http://127.0.0.1:9100/assets/packages/perfetto_ui_compiled/dist/v33.0-1838a06af/frontend_bundle.js:156:71 at new Promise ()

v33.0-1838a06af 1838a06af94f1b9897907d168408f399e23fbc18 UA: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Code/1.84.2 Chrome/114.0.5735.289 Electron/25.9.2 Safari/537.36

flutter doctor output: Doctor summary (to see all details, run flutter doctor -v): [√] Flutter (Channel stable, 3.16.2, on Microsoft Windows [Version 10.0.19045.3570], locale de-DE) [√] Windows Version (Installed version of Windows is version 10 or higher) [√] Visual Studio - develop Windows apps (Visual Studio Professional 2022 17.8.2) [√] VS Code (version 1.84.2) [√] Connected device (1 available) [√] Network resources

• No issues found!

The weird thing here is that this seems to be an error coming from android support, but I have completely disabled android via flutter config --no-enable-android in this environment.

[Finni123]

Any update? I have the same problem

[pamafe1976]

I had that same problem while debugging my Android app, and found it to be related to this line in android/gradle.properties

extra-gen-snapshot-options=--obfuscate

Works fine after removing it.

[FluffyBunniesTasteTheBest]

Same here when trying to profile an Android app in VS Code 1.92.2 with DevTools 2.37.2 running on MacOS.

Obfuscate option not set at gradle.properties.