Execution failed for task ':unique_identifier:verifyReleaseResources'.

[shobhittiwari01]

Whenever i am generating Signed Apk ,it fails error occurred that is line --

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':unique_identifier:verifyReleaseResources'.

A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
Android resource linking failed
C:\Users\Shobhit.gradle\caches\transforms-2\files-2.1\ad2bdfd0e52a7ee6c99890067618e802\core-1.1.0\res\values\values.xml:142:5-173:25: AAPT: error: resource android:attr/fontVariationSettings not found.

 C:\Users\Shobhit\.gradle\caches\transforms-2\files-2.1\ad2bdfd0e52a7ee6c99890067618e802\core-1.1.0\res\values\values.xml:142:5-173:25: AAPT: error: resource android:attr/ttcIndex not found.

• 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 1m 14s
Running Gradle task 'assembleRelease'... 75.5s
The built failed likely due to AndroidX incompatibilities in a plugin. The tool is about to try using Jetfier to solve the incompatibility.
Building plugin firebase_core...
Running Gradle task 'assembleAarRelease'... 15.9s

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.

• What went wrong:
  Execution failed for task ':generateReleaseRFile'.

Could not resolve all files for configuration ':releaseRuntimeClasspath'.
Could not find com.google.firebase:firebase-bom:25.12.0.
Searched in the following locations:
- https://storage.googleapis.com/download.flutter.io/com/google/firebase/firebase-bom/25.12.0/firebase-bom-25.12.0.pom
- https://storage.googleapis.com/download.flutter.io/com/google/firebase/firebase-bom/25.12.0/firebase-bom-25.12.0.jar
Required by:
project :
Could not find com.google.firebase:firebase-core:.
Required by:
project :
Could not find androidx.annotation:annotation:1.1.0.
Searched in the following locations:
- https://storage.googleapis.com/download.flutter.io/androidx/annotation/annotation/1.1.0/annotation-1.1.0.pom
- https://storage.googleapis.com/download.flutter.io/androidx/annotation/annotation/1.1.0/annotation-1.1.0.jar
Required by:
project :

• 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.
  ==============================================================================

2: Task failed with an exception.

• What went wrong:
  Execution failed for task ':javaPreCompileRelease'.

Could not resolve all files for configuration ':releaseCompileClasspath'.
Could not find com.google.firebase:firebase-bom:25.12.0.
Required by:
project :
Could not find com.google.firebase:firebase-core:.
Required by:
project :
Could not find androidx.annotation:annotation:1.1.0.
Required by:
project :

• 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 15s

The plugin firebase_core could not be built due to the issue above.

1. Whenever using Firebase_messaging package(firebase_messaging: ^7.0.3),issue occurs.
2. Tried Flutter Doctor, Flutter Clean to won't help.
3. pubspec.yaml contains following dependency --
   version: 1.0.0+1

environment:
sdk: ">=2.7.0 <3.0.0"

dependencies:
flutter:
sdk: flutter
firebase_messaging: ^7.0.3
http: 0.12.2
shared_preferences: 0.5.10
toast: ^0.1.5
flutter_native_timezone: ^1.0.4
unique_identifier: ^0.0.3
get_it: ^4.0.4
intl: 0.15.7
flutter_datetime_picker: ^1.4.0
flutter_facebook_login: 2.0.0
google_sign_in: ^4.5.3
cupertino_icons: ^0.1.3
flutter_calendar_carousel: ^1.4.12
in_app_purchase: ^0.3.4+16

[shobhittiwari01]