Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.

[roubledodemiamgasoni]

A problem occurred configuring project ':flutter_barcode_scanner'.

Could not create an instance of type com.android.build.api.variant.impl.LibraryVariantBuilderImpl.
Namespace not specified. Specify a namespace in the module's build file. See https://d.android.com/r/tools/upgrade-assistant/set-namespace for information about setting the namespace.

[√] Flutter (Channel stable, 3.24.2, on Microsoft Windows [versÆo 10.0.22631.4169], locale pt-BR)
• Flutter version 3.24.2 on channel stable at c:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 4cf269e36d (5 weeks ago), 2024-09-03 14:30:00 -0700
• Engine revision a6bd3f1de1
• Dart version 3.5.2
• DevTools version 2.37.2

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
• Android SDK at C:\Users\roubl\AppData\Local\Android\sdk
• Platform android-34, build-tools 35.0.0
• Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
• Java version OpenJDK Runtime Environment (build 17.0.11+0--11852314)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.5.5)
• Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
• Visual Studio Community 2022 version 17.5.33627.172
• Windows 10 SDK version 10.0.22000.0

[√] Android Studio (version 2024.1)
• Android Studio at C:\Program Files\Android\Android Studio
• 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--11852314)

[√] VS Code (version 1.94.0)
• VS Code at C:\Users\roubl\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.98.0

[√] Connected device (4 available)
• Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 10 (API 29) (emulator)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [versÆo 10.0.22631.4169]
• Chrome (web) • chrome • web-javascript • Google Chrome 129.0.6668.89
• Edge (web) • edge • web-javascript • Microsoft Edge 129.0.2792.79

[Kiens8]

same issue here

[snrguy101]

Same Issue

[EbramShereen]

Same Issue

[alistair-riskmemo]

Same here - there's a pull request to add the namespace to the build gradle. Will it be published soon?

[GianCarloRumachella]

Same here, but is there a way to fix it until the package be updated?

[SpecieX]

Sadly, this seems dead. 3 years without maintenance. Guess it's better to look for a replacement. Do somebody know of a good one?

[kurtiz]

This issues was resolved here
check it out. struggled a bit too