Execution failed for task ':app:mergeDebugAssets' when building embedded file_picker

[DaniEid]

i have a project that uses flutter_material_picker and i'm using the latest version flutter_material_pickers: ^1.7.4.
when trying to run the application on any device i got the following error from file_picker
What went wrong:
Execution failed for task ':app:mergeDebugAssets'.

Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
Could not find fragment-1.1.0.aar (androidx.fragment:fragment:1.1.0).
Searched in the following locations:
https://dl.google.com/dl/android/maven2/androidx/fragment/fragment/1.1.0/fragment-1.1.0.aar
Could not find viewpager-1.0.0.aar (androidx.viewpager:viewpager:1.0.0).
..... etc
then i got the following :
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 file_picker..
and this also fails
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:10: error: cannot find symbol
import androidx.lifecycle.DefaultLifecycleObserver;
^
symbol: class DefaultLifecycleObserver
location: package androidx.lifecycle
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:20: error: cannot find symbol
import io.flutter.embedding.engine.plugins.lifecycle.FlutterLifecycleAdapter;
symbol: class DefaultLifecycleObserver
location: class FilePickerPlugin
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:45: error: method does not override or implement a method from a supertype
@OverRide
^
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:49: error: method does not override or implement a method from a supertype
@OverRide
^
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:53: error: method does not override or implement a method from a supertype
@OverRide
^C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FilePickerPlugin.java:57: error: method does not override or implement a method from a supertype
C:\flutter.pub-cache\hosted\pub.dartlang.org\file_picker-1.13.3\android\src\main\java\com\mr\flutter\plugin\filepicker\FileUtils.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
12 errors

FAILURE: Build failed with an exception.

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

Compilation failed; see the compiler error output for details.

noting that the file_picker within material_picker is outdated (used version 1.13.3, available version ^2.0.0)
and i'm using Flutter 1.20.4 • channel stable
Tools • Dart 2.9.2

[codegrue]

Updated file_picker. Please reopen if that didn't fix the problem