PathAccessException when saving file do firectory from FilePicker.platform.getDirectoryPath

[mateusz-bak]

Describe the bug
When I select a directory other than Documents and try to save the file I get

PathAccessException: Cannot open file, path = '/storage/emulated/0/Openreads/Openreads-2025_2_2-16_51_38.backup' (OS Error: Operation not permitted, errno = 1)

Platform

• Android
• iOS
• Web
• Desktop

Platform OS version
Emulator, Android 15,
OnePlus 8T, Android 14

How are you picking?

        String? selectedDirectory =
            await FilePicker.platform.getDirectoryPath();

        File('$selectedDirectory/$fileName').writeAsBytesSync(
          File(tmpBackupPath).readAsBytesSync(),
        );

Details to reproduce the issue
As in the code, open directory picker and try to save the file there.

Error Log

PathAccessException: Cannot open file, path = '/storage/emulated/0/Openreads/Openreads-2025_2_2-16_51_38.backup' (OS Error: Operation not permitted, errno = 1)

Flutter Version details

flutter doctor -v
[✓] Flutter (Channel stable, 3.27.3, on Fedora Linux 41 (Workstation Edition) 6.12.10-200.fc41.x86_64, locale pl_PL.UTF-8)
    • Flutter version 3.27.3 on channel stable at /home/mateusz/dev/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision c519ee916e (12 dni temu), 2025-01-21 10:32:23 -0800
    • Engine revision e672b006cb
    • Dart version 3.6.1
    • DevTools version 2.40.2

[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.1)
    • Android SDK at /home/mateusz/Android/Sdk
    • Platform android-35, build-tools 35.0.1
    • Java binary at: /home/mateusz/.local/share/JetBrains/Toolbox/apps/android-studio/jbr/bin/java
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12422083-b607.1)
    • All Android licenses accepted.

[✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[✓] Linux toolchain - develop for Linux desktop
    • clang version 19.1.7 (Fedora 19.1.7-1.fc41)
    • cmake version 3.30.5
    • ninja version 1.12.1
    • pkg-config version 2.3.0

[✓] Android Studio (version 2024.2)
    • Android Studio at /home/mateusz/.local/share/JetBrains/Toolbox/apps/android-studio
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • android-studio-dir = /home/mateusz/.local/share/JetBrains/Toolbox/apps/android-studio
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12422083-b607.1)

[✓] VS Code (version 1.96.4)
    • VS Code at /usr/share/code
    • Flutter extension version 3.102.0

[✓] Connected device (2 available)
    • sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64 • Android 15 (API 35) (emulator)
    • Linux (desktop)              • linux         • linux-x64   • Fedora Linux 41 (Workstation Edition) 6.12.10-200.fc41.x86_64

[✓] Network resources
    • All expected network resources are available.

! Doctor found issues in 1 category.

Additional context
My Manifest:

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

Also it worked with package shared_storage with below code but it is now discontinued.:

        final selectedUriDir = await openDocumentTree();
        if (selectedUriDir == null) {
          return;
        }
        createFileAsBytes(
          selectedUriDir,
          mimeType: '',
          displayName: fileName,
          bytes: File(tmpBackupPath).readAsBytesSync(),
        );

[devtronic]

I'm facing the same issue. I'm using the flutter_file_dialog package as a work around. When this problem is solved I'll switch to this package.

[github-actions]

This issue is stale because it has been open for 7 days with no activity.