PackageInstaller needs to work in the snap

[Feichtmeier]

We do not discuss this very often :laughing: but the app also has the feature to install local debian files from the file manager Looks like this...

Install / Uninstall works fine

When I start the app from the snap-store command in the cli, packagekit gives an error:

frederik@carbon:~/Downloads$ snap-store google-chrome-stable_current_amd64.deb 
Unsupported modifier, resource creation failed.
XXX: resource creation failed
Unsupported modifier, resource creation failed.
XXX: resource creation failed
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: org.freedesktop.PackageKit.Transaction.NoSuchFile: File google-chrome-stable_current_amd64.deb is not found or unsupported
#0      DBusClient._callMethod (package:dbus/src/dbus_client.dart:1131)
<asynchronous suspension>
#1      DBusClient.callMethod (package:dbus/src/dbus_client.dart:608)
<asynchronous suspension>
#2      PackageKitTransaction.getDetailsLocal (package:packagekit/src/packagekit_client.dart:1030)
<asynchronous suspension>
#3      PackageService.getDetailsAboutLocalPackage (package:software/services/package_service.dart:661)
<asynchronous suspension>

Unsupported modifier, resource creation failed.
XXX: resource creation failed

Any idea why this happens in the snap but not with the local binary? CC @kenvandine

Classes used for this are here: https://github.com/ubuntu-flutter-community/software/tree/main/lib/package_installer

Here: https://github.com/ubuntu-flutter-community/software/blob/ed77278b0e417997eb8a2757ddd8adb4846d8bbb/lib/services/package_service.dart#L643-L687

And in main.dart https://github.com/ubuntu-flutter-community/software/blob/main/lib/main.dart