[Bug report]

[phanil]

Version

3.1.1

Platforms

Android

Device Model

sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 • Android 15 (API 35) (emulator)

flutter info

[✓] Flutter (Channel stable, 3.38.5, on macOS 15.3.2 24D81 darwin-arm64, locale zh-Hans-CN) [766ms]
    • Flutter version 3.38.5 on channel stable at /Users/xxx/fvm/versions/3.38.5
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision f6ff1529fd (3 weeks ago), 2025-12-11 11:50:07 -0500
    • Engine revision 1527ae0ec5
    • Dart version 3.10.4
    • DevTools version 2.51.1
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn
    • Feature flags: no-enable-web, no-enable-linux-desktop, no-enable-macos-desktop, no-enable-windows-desktop, enable-android, enable-ios, cli-animations,
      enable-native-assets, omit-legacy-version-file, enable-lldb-debugging

[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0) [2.1s]
    • Android SDK at /Users/xxx/Library/Android/sdk/
    • Emulator version 35.4.9.0 (build_id 13025442) (CL:N/A)
    • Platform android-36, build-tools 36.0.0
    • ANDROID_HOME = /Users/xxx/Library/Android/sdk/
    • ANDROID_SDK_ROOT = /Users/xxx/Library/Android/sdk
    • 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 17.0.10+0-17.0.10b1087.21-11572160)
    • All Android licenses accepted.

[!] Xcode - develop for iOS and macOS (Xcode 16.3) [1,945ms]
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 16E140
    ✗ CocoaPods not installed.
        CocoaPods is a package manager for iOS or macOS platform code.
        Without CocoaPods, plugins will not work on iOS or macOS.
        For more info, see https://flutter.dev/to/platform-plugins
      For installation instructions, see https://guides.cocoapods.org/using/getting-started.html#installation

[✓] Connected device (1 available) [6.1s]
    • sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64 • Android 15 (API 35) (emulator)

[✓] Network resources [382ms]
    • All expected network resources are available.

! Doctor found issues in 1 category.

How to reproduce?

Logs

log] ⛔ flutter error [true]: ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞══════════════════════
[log] ⛔ The following assertion was thrown during performLayout():
[log] ⛔ 'package:flutter/src/rendering/sliver_multi_box_adaptor.dart':
[log] ⛔ Failed assertion: line 638 pos 12: 'child.hasSize': is not true.
[log] ⛔ 
[log] ⛔ The relevant error-causing widget was:
[log] ⛔   LoadingMoreSliverList<FlowItemData>
[log] ⛔ 
[log] ⛔ When the exception was thrown, this was the stack:
[log] ⛔ #5      RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #6      RenderSliverEdgeInsetsPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:133:12)
sliver_padding.dart:133
[log] ⛔ #7      RenderSliverPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:371:11)
sliver_padding.dart:371
[log] ⛔ #8      RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #9      RenderViewportBase.layoutChildSequence (package:flutter/src/rendering/viewport.dart:673:13)
viewport.dart:673
[log] ⛔ #10     RenderViewport._attemptLayout (package:flutter/src/rendering/viewport.dart:1684:12)
viewport.dart:1684
[log] ⛔ #11     RenderViewport.performLayout (package:flutter/src/rendering/viewport.dart:1575:20)
viewport.dart:1575
[log] ⛔ #12     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #13     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:18)
proxy_box.dart:115
[log] ⛔ #14     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #15     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:18)
proxy_box.dart:115
[log] ⛔ #16     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #17     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:18)
proxy_box.dart:115
[log] ⛔ #18     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #19     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:18)
proxy_box.dart:115
[log] ⛔ #20     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)
object.dart:2775
[log] ⛔ #21     RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:115:18)
proxy_box.dart:115
[log] ⛔ #22     RenderObject.layout (package:flutter/src/rendering/object.dart:2775:7)

Example code (optional)

<img width="784" height="498" alt="Image" src="https://github.com/user-attachments/assets/992ba681-7e80-49cf-9d73-834525cb786d" />

Contact

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