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[desktop_drop] failed to resolve portal transfer

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
50/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
flutter, linux

Research direction

Start by reproducing the failure with the Flutter app packaged in a Flatpak, then inspect the desktop_drop handling for portal transfers. Confirm the change by repeating the file-drop scenario and verifying that the transfer succeeds without the Invalid transfer error.

Written by the indexing model from the issue text.

Description

When dropping a file in to the application running in a Flatpak, the transfer fails with the following:

desktop_drop: failed to resolve portal transfer: org.freedesktop.DBus.Error.AccessDenied: Invalid transfer

Reproduce Steps

Steps to reproduce the behavior:

  1. Package flutter app in to a Flatpak
  2. Attempt to drop file in using desktop_drop
  3. See error

Expected behavior

The file transfer should succeed

Version (please complete the following information):

  • Flutter Version: v3.41.9
  • OS: Linux
  • plugin: desktop_drop: ^0.8.4
Dominant language
C
Stars
512
Forks
292
PR merge metrics
No merged PRs in 30d

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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