qr_code_scanner does not work in app-release.apk, but work in app-debug.apk.

[azzamt11]

I cannot give the precise description of the bug since it is on app-release.apk thou. It is impossible for me to trace what is wrong with the app. For the records. I have updated all the dependencies, minSdkVersion, and Flutter Sdk to the last version, and not only that, I also tried downgrading Flutter Sdk into several version to check which one is working, but no hope. please tell me what to do sir.

[Leylan24]

you can try disabling minifyEnabled and shrinkResources in your build.gradle

buildTypes {
    release {
        // TODO: Add your own signing config for the release build.
        // Signing with the debug keys for now, so `flutter run --release` works.
        signingConfig signingConfigs.debug
        shrinkResources false
        minifyEnabled false
    }
}

[AbhishekpYoungsoft]

hi leylan, yes did changed the build.gradle file as above, still the issue persists, please provide approriate solution, thanks in advance

[AbhishekpYoungsoft]

hi leylan, yes did changed the build.gradle file as above, still the issue persists, please provide approriate solution, thanks in advance

[JeffTyfoom]

Up! I also experience the same issue.

[el2zay]

I had this problem because an Expanded widget had been misplaced. Please check this.

Before:

    return Expanded(
      flex: 5,
      child: Stack(
        // ... 

After

return Column(
      children: [
        Expanded(
          flex: 5,
          child: Stack(
          // ...

I got this error by debugging on a real iOS device.

═╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following assertion was thrown while applying parent data.:
Incorrect use of ParentDataWidget.
The ParentDataWidget Expanded(flex: 5) wants to apply ParentData of type FlexParentData to a
RenderObject, which has been set up to accept ParentData of incompatible type
MultiChildLayoutParentData.
Usually, this means that the Expanded widget has the wrong ancestor RenderObjectWidget. Typically,
Expanded widgets are placed directly inside Flex widgets.
The offending Expanded is currently placed inside a CustomMultiChildLayout widget.
The ownership chain for the RenderObject that received the incompatible parent data was:
  Stack ← Expanded ← KeyedSubtree-[GlobalKey#42a2e] ← _BodyBuilder ← MediaQuery ←
LayoutId-[<_ScaffoldSlot.body>] ← CustomMultiChildLayout ← _ActionsScope ← Actions ← AnimatedBuilder
← ⋯

When the exception was thrown, this was the stack:

Hope this helps 🙌

[EAHOG]

same...

[Clothless]

I had the same issue for a couple of days, and i finally got a solution.
The widget is wrapped in Expanded() right?
Just remove that Expanded(), that solves the problem for me!