RenderBox was not laid out: _RenderSingleChildViewport error in ListView inside Column #171664
Closed as not planned
Description
Steps to reproduce
- Create a Column
- Add ListView.builder inside Column without height constraint
- Run app on any device/emulator
- Observe error
Expected results
The app should render the list view inside column without any layout error.
Actual results
RenderBox was not laid out: _RenderSingleChildViewport error thrown at runtime.
Code sample
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return const MaterialApp(home: MyHomePage());
}
}
class MyHomePage extends StatelessWidget {
const MyHomePage({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: [
SizedBox(
height: 230.h,
child: ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: homeController.popularProducts.length,
itemBuilder: (context, index) {
final product = homeController.popularProducts[index];
return Container(
margin: EdgeInsets.only(right: 15.w),
width: 150.w,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
// product widget...
],
),
);
},
),
),
],
),
);
}
}Screenshots or Video
Logs
════════ Exception caught by rendering library ═════════════════════════════════
RenderBox was not laid out: _RenderSingleChildViewport#...
...
Flutter Doctor output
Doctor output
[
[✓] Flutter (Channel stable, 3.32.4, on macOS 15.4.1 24E263 darwin-arm64, locale en-US) [520ms]
• Flutter version 3.32.4 on channel stable at /Users/zihad/development/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 6fba2447e9 (3 weeks ago), 2025-06-12 19:03:56 -0700
• Engine revision 8cd19e509d
• Dart version 3.8.1
• DevTools version 2.45.1
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.1) [2.5s]
• Android SDK at /Users/zihad/Library/Android/sdk
• Platform android-35, build-tools 35.0.1
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/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+0-17.0.11b1207.24-11852314)
• All Android licenses accepted.
[✓] Xcode - develop for iOS and macOS (Xcode 16.2) [2.2s]
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16C5032a
• CocoaPods version 1.16.2
[✓] Chrome - develop for the web [9ms]
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2024.1) [9ms]
• Android Studio at /Applications/Android Studio.app/Contents
• 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+0-17.0.11b1207.24-11852314)
[✓] VS Code (version 1.97.2) [8ms]
• VS Code at /Users/zihad/Downloads/Visual Studio Code.app/Contents
• Flutter extension version 3.114.0
[✓] Connected device (4 available) [6.8s]
• sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 • Android 15 (API 35) (emulator)
• iPhone 16 (mobile) • 92AE1B25-D01C-4A97-837C-9E21A81F4F26 • ios • com.apple.CoreSimulator.SimRuntime.iOS-18-3 (simulator)
• macOS (desktop) • macos • darwin-arm64 • macOS 15.4.1 24E263 darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 137.0.7151.122
! Error: Browsing on the local area network for Md’s iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network as
this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
! Error: Browsing on the local area network for Musfiqur’s iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network
as this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
! Error: Browsing on the local area network for iPhone. Ensure the device is unlocked and attached with a cable or associated with the same local area network as this
Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
[✓] Network resources [1,444ms]
• All expected network resources are available.
• No issues found!
]