Connection closed before full header was received

Question

I'm new with flutter and I'm working on an app that show a long listView of images via Image.network. All is running, but quite often and absolutely random (even if I scroll very slowly), I get this error:

I/flutter (10990): EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE 
I/flutter (10990): The following HttpException was thrown resolving an image codec:
I/flutter (10990): Connection closed before full header was received, uri =
I/flutter (10990): http://www.attilofficina.altervista.org/phpbackend/JOB/000004/mockup/000004_017.jpg
I/flutter (10990): 
I/flutter (10990): When the exception was thrown, this was the stack:
I/flutter (10990): #0      NetworkImage._loadAsync (package:flutter/src/painting/image_provider.dart:525:41)
I/flutter (10990): <asynchronous suspension>.

And those images are skipped!

Is there a way to handle this error and force reload of those images missing? Special thanks in advance

I've also tried with paginated listView, with minimum number of pages to be load at a time, but this doesn't solve and the error always returns randomly.

Here flutter doctor -v

[√] Flutter (Channel stable, v1.7.8+hotfix.3, on Microsoft Windows [Versione 10.0.17134.885], locale it-IT)
    • Flutter version 1.7.8+hotfix.3 at C:\src\flutter
    • Framework revision b712a172f9 (7 days ago), 2019-07-09 13:14:38 -0700
    • Engine revision 54ad777fd2
    • Dart version 2.4.0


[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at C:\Users\Mussa.DESKTOP-HFFLS0G\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
    • All Android licenses accepted.

[√] Android Studio (version 3.4)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 37.0.1
    • Dart plugin version 183.6270
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)

[√] VS Code (version 1.36.0)
    • VS Code at C:\Users\Mussa.DESKTOP-HFFLS0G\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.2.0

[√] Connected device (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android P (API 27) (emulator)

• No issues found!

Answer 1

It may be because the widget is reused in the widget tree and thus interrupts the HTTP request. You could then use a key in your FutureBuilder or Image widget.

child: FutureBuilder<File>(
  key: ValueKey(imageUrl), // or use UniqueKey()  
  ...