1892232 - Error in Browser Console: BackgroundUpdate: maybeScheduleBackgroundUpdateTask: exiting after uncaught exception in maybeScheduleBackgroundUpdateTask! NS_ERROR_FILE_NOT_FOUND

Status: RESOLVED FIXED

(Toolkit :: Application Update, defect, P4)

Description

[Mayank Bansal]

Start browser
Open Browser console

AR: Error in the console

BackgroundUpdate: maybeScheduleBackgroundUpdateTask: exiting after uncaught exception in maybeScheduleBackgroundUpdateTask! NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIWinTaskSchedulerService.deleteTask]
deleteTask resource://gre/modules/TaskSchedulerWinImpl.sys.mjs:50
deleteTask resource://gre/modules/TaskScheduler.sys.mjs:147
deleteTasksInRange resource://gre/modules/BackgroundUpdate.sys.mjs:99
maybeScheduleBackgroundUpdateTask resource://gre/modules/BackgroundUpdate.sys.mjs:586

Comment 1

[Mayank Bansal]

Attachment: about:support

Comment 2

[Nipun Shukla]

Hi, thanks for the report. At this point I think there's some issue with how your tasks are configured. The best solution here might just be to put a try catch around the deleteTask call. Before that though, can you please tell me the value of the app.update.background.lastInstalledTaskVersion pref and also open the Windows Task Scheduler, navigate to the Mozilla folder, and tell me the names of all Background Update tasks you have?

Comment 3

[Mayank Bansal]

app.update.background.lastInstalledTaskVersion = 3

Putting screenshots in the attached pdf.

Happy to run any instrumented builds or share any log etc.

Comment 4

[Mayank Bansal]

Attachment: task_scheduler.pdf

Comment 5

[Mayank Bansal]

Attachment: Background Tasks Profiles.zip

Comment 6

[Mayank Bansal]

Attachment: installs.ini

Comment 7

[Mayank Bansal]

Attachment: profiles.ini

Comment 8

[Nipun Shukla]

The pref should have been set to 4 once your background tasks were registered, all of which look to be in the updated format to me. I assume this didn't happen because the code in 1891521 couldn't delete multiple versions correctly, instead erroring out after one. I think it might still be worth adding a try catch to the relevant deletion code just so we have better logs of this though.

Comment 9

[Eric Chen]

Attachment: Bug 1892232 - Catch errors when deleting scheduled background update tasks r=nrishel,nshukla

Comment 10

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d773b9cc57f9
Catch errors when deleting scheduled background update tasks r=nrishel,nshukla

Comment 11

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/d773b9cc57f9