PathNotFoundException: PathNotFoundException: Cannot open file, path = '/var/mobile/Containers/Data/Application/4639D148...

[sentry-io]

Sentry Issue: SMOOTHIE-2BF

Background task error (PathNotFoundException: Cannot open file, path = '/var/mobile/Containers/Data/Application/4639D148-C579-4CC4-9A11-267614A0DDE4/Library/Application Support/full_image_4.jpeg' (OS Error: No such file or directory, errno = 2))
debug
10:01:47
default
New permission value: DevicePermission{permission: Permission.camera, status: DevicePermissionStatus.granted}

[monsieurtanuki]

Looks like it's an error specific to ios.
We're using the "Application Support" directory that does not seem to be clearer automatically (e.g. when space is needed).

BUT

Since iOS 8.0, every time you rebuild your code, the name of the application folder (which contains your documents and library directories) changes. This is the intended behaviour.
So if you want to store a path, you should only store the filename, and then combine it with the location of the documents directory on the fly. This way, it will always point to the correct location.

And indeed we're storing the full path in the background tasks (e.g. '/var/mobile/Containers/Data/Application/23AE7B1D-8B8C-4F4D-BD35-E1A8CC463589/Library/Application Support/full_image_4.jpeg').
The solution, specific to ios, would be to retry with the same filename but with the latest generation of the folder.

I can code that, I just cannot test it on actual ios devices.

(for the record, on android the same path is something like '/data/data/org.openfoodfacts.scanner/files/full_image_1.jpeg.cropped.jpg')