This repository was archived by the owner on Jun 13, 2024. It is now read-only.
This repository was archived by the owner on Jun 13, 2024. It is now read-only.
'package:flutter/src/widgets/page_view.dart': Failed assertion: line 130 pos 15: 'viewportFraction > 0.0': is not true. #335
Description
Describe the bug
I clone the repository and don't change any code. I run the Gallery on the master channel and I do pub get. I connect my smartphone to the computer and I build and run by Android Studio. However, an exception is thrown:
...
Launching lib\main.dart on SM N900 in debug mode...
Running Gradle task 'assembleDebug'...
√ Built build\app\outputs\flutter-apk\app-debug.apk.
Waiting for SM N900 to report its views...
Debug service listening on ws://127.0.0.1:56995/mPuNd28yIWQ=/ws
Syncing files to device SM N900...
════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
The following assertion was thrown building NotificationListener<KeepAliveNotification>:
'package:flutter/src/widgets/page_view.dart': Failed assertion: line 130 pos 15: 'viewportFraction > 0.0': is not true.
The relevant error-causing widget was:
ListView-[<'HomeListView'>] file:///C:/Users/m3/repos/fork/gallery/lib/pages/home.dart:367:9
When the exception was thrown, this was the stack:
#2 new PageController (package:flutter/src/widgets/page_view.dart:130:15)
#3 _CarouselState.didChangeDependencies (package:gallery/pages/home.dart:714:21)
#4 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4814:11)
#5 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4630:5)
... Normal element mounting (33 frames)
...
════════════════════════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
'package:flutter/src/rendering/sliver_multi_box_adaptor.dart': Failed assertion: line 259 pos 16: 'child == null || indexOf(child) > index': is not true.
The relevant error-causing widget was:
ListView-[<'HomeListView'>] file:///C:/Users/m3/repos/fork/gallery/lib/pages/home.dart:367:9
════════════════════════════════════════════════════════════════════════════════════════════════════
Flutter doctor
Output of flutter doctor -v:
C:\Users\m3\Downloads\flutter_windows_1.20.4-stable\flutter\bin\flutter.bat doctor --verbose
[√] Flutter (Channel master, 1.23.0-8.0.pre.69, on Microsoft Windows [Version 10.0.19041.264], locale en-US)
• Flutter version 1.23.0-8.0.pre.69 at C:\Users\m3\Downloads\flutter_windows_1.20.4-stable\flutter
• Framework revision a06f385145 (2 days ago), 2020-09-29 21:37:04 -0400
• Engine revision d18c3ea75c
• Dart version 2.11.0 (build 2.11.0-178.0.dev)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.1)
• Android SDK at C:\Users\m3\AppData\Local\Android\sdk
• Platform android-30, build-tools 30.0.1
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.
[√] Android Studio (version 4.0)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 48.0.2
• Dart plugin version 193.7361
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
[√] Connected device (1 available)
• SM N900 (mobile) • 4d00b6ae472d80eb • android-arm • Android 5.0 (API 21)
• No issues found!
To Reproduce
Steps to reproduce the behavior:
- Clone the repository
- Switch to
masterchannel - Run pub get
- Connect your Samsung Galaxy Note 3 to your computer via USB cable
- On Android Studio run the application
- After building and installing the app on smartphone, the exceptions are thrown
Expected behavior
No exception is expected
Screenshots
Desktop:
- OS: Microsoft Windows 10 Pro 64-bit
- Browser: Opera 70.0.3728.189
- Version: 10.0.19041 Build 19041
Smartphone:
- Device: Samsung Galaxy Note 3
- OS: Android 5.0
- Browser: Opera
- Version 5.0