Flutter goldens Android on windows not working

@matanlurey

Steps to reproduce

Inside an integration test run using "flutter test integration_test/app_test.dart" on windows and an android emulator or physical device. I have tested this code on a mac with and iOS simulator and it works fine.

await expectLater(find.byWidget(appWidget), matchesGoldenFile("test.png"));

@matanlurey This might be in your wheelhouse as your name keeps popping up as I research the solution to this :-)

Expected results

Takes or compares a snapshot as part of the test

Actual results

01:24 +0 -1: loading C:/code/.../login_test.dart [E]
  Invalid argument(s): Uri c:/code/.../integration_test/login_test.dart must have scheme 'file:'.
  package:path/src/style/windows.dart 86:7                           WindowsStyle.pathFromUri
  package:path/src/context.dart 1040:40                              Context.fromUri
  package:file/src/interface/file_system.dart 158:24                 FileSystem.getPath
  package:file/src/backends/local/local_file_system.dart 26:54       LocalFileSystem.file
  package:flutter_tools/src/base/error_handling_io.dart 139:83       ErrorHandlingFileSystem.file
  package:flutter_tools/src/test/test_golden_comparator.dart 87:19   TestGoldenComparator._processForTestFile
  package:flutter_tools/src/test/test_golden_comparator.dart 153:56  TestGoldenComparator._compareGoldens
  ===== asynchronous gap ===========================
  package:flutter_tools/src/test/test_golden_comparator.dart 126:28  TestGoldenComparator.compare
  ===== asynchronous gap ===========================
  package:flutter_tools/src/test/flutter_platform.dart 559:17        FlutterPlatform._listenToVmServiceForGoldens.<fn>

Code sample

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Counter App',
      home: Text('Counter App Home Page'),
    );
  }
}

void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();

  group('end-to-end test', () {
    testWidgets('tap on the floating action button, verify counter', (
      tester,
    ) async {
      final appWidget = MyApp();
      await tester.pumpWidget(appWidget);
      await expectLater(find.byWidget(appWidget), matchesGoldenFile("test.png"));
    });
  });
}

Screenshots or Video

Screenshots / Video demonstration

[Upload media here]

Logs

[Paste your logs here]

Flutter Doctor output

Doctor output

flutter doctor -v                                              
[√] Flutter (Channel stable, 3.32.4, on Microsoft Windows [Version 10.0.26100.4351], locale en-US) [758ms]
    • Flutter version 3.32.4 on channel stable at C:\code\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 6fba2447e9 (12 days ago), 2025-06-12 19:03:56 -0700
    • Engine revision 8cd19e509d
    • Dart version 3.8.1
    • DevTools version 2.45.1

[√] Windows Version (Windows 11 or higher, 24H2, 2009) [6.1s]

[√] Android toolchain - develop for Android devices (Android SDK version 35.0.0) [2.9s]
    • Android SDK at C:\Users\asade\AppData\Local\Android\Sdk
    • Platform android-35, build-tools 35.0.0
    • ANDROID_HOME = C:\Users\asade\AppData\Local\Android\Sdk
    • Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 17.0.11+0--11852314)
    • All Android licenses accepted.

[√] Chrome - develop for the web [224ms]
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Build Tools 2022 17.14.2) [222ms]
    • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools
    • Visual Studio Build Tools 2022 version 17.14.36121.58
    • Windows 10 SDK version 10.0.26100.0

[√] Android Studio (version 2024.2) [40ms]
    • Android Studio at C:\Program Files\Android\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
    • Java version OpenJDK Runtime Environment (build 17.0.11+0--11852314)

[√] VS Code (version 1.101.1) [35ms]
    • VS Code at C:\Users\asade\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.112.0

[√] Connected device (4 available) [476ms]
    • Pixel 3 (mobile)  • 019XS1UMP • android-arm64  • Android 12 (API 31)
    • Windows (desktop) • windows   • windows-x64    • Microsoft Windows [Version 10.0.26100.4351]
    • Chrome (web)      • chrome    • web-javascript • Google Chrome 137.0.7151.120
    • Edge (web)        • edge      • web-javascript • Microsoft Edge 137.0.3296.93

[√] Network resources [1,513ms]
    • All expected network resources are available.

• No issues found!

Reproducible using the test case provided above.
On a macOS host, the test passes as expected on the android device but on a windows host, it fails. The test also passes when windows is targeted as the host.

Labeling for further investigation

flutter doctor -v

[√] Flutter (Channel master, 3.33.0-1.0.pre.697, on Microsoft Windows [Version 10.0.26100.3194], locale en-US) [8.4s]
    • Flutter version 3.33.0-1.0.pre.697 on channel master at C:\Users\Deana\fvm\versions\master
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 961ce3ec82 (4 hours ago), 2025-06-26 00:08:58 -0400
    • Engine revision 961ce3ec82
    • Dart version 3.9.0 (build 3.9.0-277.0.dev)
    • DevTools version 2.48.0-dev.0

[√] Windows Version (11 Home 64-bit, 24H2, 2009) [3.3s]

[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0) [4.8s]
    • Android SDK at C:\Users\Deana\AppData\Local\Android\sdk
    • Emulator version 33.1.23.0 (build_id 11150993) (CL:N/A)
    • Platform android-36, build-tools 34.0.0
    • Java binary at: C:\Users\Deana\AppData\Local\Programs\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12508038-b607.1)
    • All Android licenses accepted.

[√] Chrome - develop for the web [281ms]
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.6) [276ms]
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
    • Visual Studio Community 2022 version 17.13.35931.197
    • Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2023.1) [51ms]
    • Android Studio at C:\Program Files\Android\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
    • Java version OpenJDK Runtime Environment (build 17.0.7+0-b2043.56-10550314)

[√] Android Studio (version 2024.2) [45ms]
    • Android Studio at C:\Users\Deana\AppData\Local\Programs\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
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12508038-b607.1)

[√] VS Code (version 1.98.0) [43ms]
    • VS Code at C:\Users\Deana\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.110.0

[√] Connected device (5 available) [1,118ms]
    • Pixel 7 (mobile)             • 28291FDH2001SA • android-arm64  • Android 16 (API 36)
    • sdk gphone64 x86 64 (mobile) • emulator-5554  • android-x64    • Android 14 (API 34) (emulator)
    • Windows (desktop)            • windows        • windows-x64    • Microsoft Windows [Version 10.0.26100.3194]
    • Chrome (web)                 • chrome         • web-javascript • Google Chrome 137.0.7151.104
    • Edge (web)                   • edge           • web-javascript • Microsoft Edge 137.0.3296.93

[√] Network resources [1,663ms]
    • All expected network resources are available.

• No issues found!

[!] Flutter (Channel stable, 3.32.5, on Microsoft Windows [Version 10.0.26100.3194], locale en-US) [712ms]
    • Flutter version 3.32.5 on channel stable at C:\Users\Deana\fvm\versions\stable
    ! Warning: `flutter` on your path resolves to C:\Users\Deana\fvm\versions\master\bin\flutter, which is not inside your current Flutter SDK checkout at C:\Users\Deana\fvm\versions\stable. Consider adding C:\Users\Deana\fvm\versions\stable\bin to the front of your path.
    ! Warning: `dart` on your path resolves to C:\Users\Deana\fvm\versions\master\bin\dart, which is not inside your current Flutter SDK checkout at C:\Users\Deana\fvm\versions\stable. Consider adding C:\Users\Deana\fvm\versions\stable\bin to the front of your path.
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision fcf2c11572 (2 days ago), 2025-06-24 11:44:07 -0700
    • Engine revision dd93de6fb1
    • Dart version 3.8.1
    • DevTools version 2.45.1
    • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades.

[√] Windows Version (11 Home 64-bit, 24H2, 2009) [2.9s]

[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0) [3.1s]
    • Android SDK at C:\Users\Deana\AppData\Local\Android\sdk
    • Platform android-36, build-tools 34.0.0
    • Java binary at: C:\Users\Deana\AppData\Local\Programs\Android Studio\jbr\bin\java
      This is the JDK bundled with the latest Android Studio installation on this machine.
      To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12508038-b607.1)
    • All Android licenses accepted.

[√] Chrome - develop for the web [205ms]
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.6) [202ms]
    • Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
    • Visual Studio Community 2022 version 17.13.35931.197
    • Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2023.1) [34ms]
    • Android Studio at C:\Program Files\Android\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
    • Java version OpenJDK Runtime Environment (build 17.0.7+0-b2043.56-10550314)

[√] Android Studio (version 2024.2) [30ms]
    • Android Studio at C:\Users\Deana\AppData\Local\Programs\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
    • Java version OpenJDK Runtime Environment (build 21.0.4+-12508038-b607.1)

[√] VS Code (version 1.98.0) [28ms]
    • VS Code at C:\Users\Deana\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.110.0

[√] Connected device (5 available) [613ms]
    • Pixel 7 (mobile)             • 28291FDH2001SA • android-arm64  • Android 16 (API 36)
    • sdk gphone64 x86 64 (mobile) • emulator-5554  • android-x64    • Android 14 (API 34) (emulator)
    • Windows (desktop)            • windows        • windows-x64    • Microsoft Windows [Version 10.0.26100.3194]
    • Chrome (web)                 • chrome         • web-javascript • Google Chrome 137.0.7151.104
    • Edge (web)                   • edge           • web-javascript • Microsoft Edge 137.0.3296.93

[√] Network resources [706ms]
    • All expected network resources are available.

! Doctor found issues in 1 category.

The issue is

flutter/packages/flutter_tools/lib/src/test/flutter_platform.dart

Line 528 in 08def36

final Uri goldensBaseUri = Uri.parse(testPath);

results in something like:

c:/Users/xyz/Source/abc/integration_test/app_test.dart

in Windows, rather than file://..., but

flutter/packages/flutter_tools/lib/src/test/test_golden_comparator.dart

Line 88 in 08def36

_fileSystem.file(testUri),

will require it to be a file:/// URI.

Calling Uri.parse(c:/x/y/z/) results in a Uri with scheme c.

I think FlutterPlatform._listenToVmServiceForGoldens should be careful when constructing URIs for windows.

I believe the correct fix is to replace

flutter/packages/flutter_tools/lib/src/test/flutter_platform.dart

Line 528 in 08def36

final Uri goldensBaseUri = Uri.parse(testPath);

with:

final Uri goldensBaseUri = Uri.file(testPath, windows: IS_WINDOWS);

where I'm not quite sure if it's okay to substitute IS_WINDOWS with Platform.isWindows there or what.

Properly parse URIs for testPath when the host is running on Windows.

Properly parse URIs for testPath when the host is running on Windows. (…

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

Properly parse URIs for testPath when the host is running on Windows. (…

Navigation Menu

Repository navigation

Flutter goldens Android on windows not working #171126

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Flutter goldens Android on windows not working #171126

Description

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Activity

danagbemava-nc commented on Jun 26, 2025

Eyas commented on Oct 7, 2025

Eyas commented on Oct 7, 2025

github-actions commented on Mar 30, 2026

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions