can't build, flutter build apk fails

[UnifiedDZ]

hey flutter noob here, great app! I wanna try adding a few options like file conversion but when trying to compile the app I'm getting this on the terminal
Im using a fork of VSCode on windows 10

PS C:\Users\Aziz\3D Objects\Openlib> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.16.5, on Microsoft Windows [Version 10.0.19044.3803],
locale en-US)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[X] Chrome - develop for the web (Cannot find Chrome executable at
.\Google\Chrome\Application\chrome.exe)
! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[X] Visual Studio - develop Windows apps
X Visual Studio not installed; this is necessary to develop Windows apps.
Download at https://visualstudio.microsoft.com/downloads/.
Please install the "Desktop development with C++" workload, including all of its
default components
[√] Android Studio (version 2023.2)
[√] VS Code (version 1.87.1)
[√] Connected device (2 available)
[√] Network resources

! Doctor found issues in 2 categories.
PS C:\Users\Aziz\3D Objects\Openlib> flutter build apk

FAILURE: Build failed with an exception.

• Where:
  Build file 'C:\Users\Aziz\3D Objects\Openlib\android\app\build.gradle' line: 53

• What went wrong:
  A problem occurred evaluating project ':app'.

Cannot invoke method toInteger() on null object

• Try:

Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1s
Running Gradle task 'assembleRelease'... 2,629ms
Gradle task assembleRelease failed with exit code 1

[dstark5]

Make sure you have these field in android/app/application.properties

flutter.versionName=1.0.6
flutter.versionCode=9
flutter.minSdkVersion=21
flutter.targetSdkVersion=30
flutter.compileSdkVersion=30

[mastof]

I have the same problem, but in the code there is no file ' android/app/application.properties' I tried to create the file but the error persists

PS C:\Users\Mastof> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.19.6, on Microsoft Windows [versÆo 10.0.22631.3447], locale pt-BR)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
[√] Chrome - develop for the web
[X] Visual Studio - develop Windows apps
    X Visual Studio not installed; this is necessary to develop Windows apps.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components
[√] Android Studio (version 2023.2)
[√] VS Code (version 1.89.1)
[√] Connected device (3 available)
[√] Network resources

PS C:\Users\Mastof\Desktop\Openlib-1.0.6-beta> flutter build apk

You are applying Flutter's app_plugin_loader Gradle plugin imperatively using the apply script method, which is deprecated and will be removed in a future release. Migrate to applying Gradle plugins with the declarative plugins block: https://flutter.dev/go/flutter-gradle-plugin-apply

You are applying Flutter's main Gradle plugin imperatively using the apply script method, which is deprecated and will be removed in a future release. Migrate to applying Gradle plugins with the declarative plugins block: https://flutter.dev/go/flutter-gradle-plugin-apply


FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\Mastof\Desktop\Openlib-1.0.6-beta\android\app\build.gradle' line: 59

* What went wrong:
A problem occurred evaluating project ':app'.
> Cannot invoke method toInteger() on null object

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 998ms
Running Gradle task 'assembleRelease'...                         1.693ms
Gradle task assembleRelease failed with exit code 1

[Tactile-Taco]

I am having the same issue