خطا در استفاده از image_picker

سلام دوستان  من خظای زیر رو دریافت میکنم هر وقت میخوام از image_picker استفاده کنم ممنون میشم کمکم کنید

Launching lib\main.dart on Android SDK built for x86 in debug mode…
[!] Your app isn’t using AndroidX.
To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY.
Running Gradle task ‘assembleDebug’…
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:15: error: cannot find symbol
import androidx.lifecycle.DefaultLifecycleObserver;
^
symbol: class DefaultLifecycleObserver
location: package androidx.lifecycle
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:33: error: cannot find symbol
implements Application.ActivityLifecycleCallbacks, DefaultLifecycleObserver {
^
symbol: class DefaultLifecycleObserver
location: class ImagePickerPlugin
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:40: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:43: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:46: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:49: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:52: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:57: error: method does not override or implement a method from a supertype
@Override
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:201: error: incompatible types: ImagePickerPlugin.LifeCycleObserver cannot be converted to LifecycleObserver
lifecycle.addObserver(observer);
^
C:\src\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.6.7+9\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerPlugin.java:209: error: incompatible types: ImagePickerPlugin.LifeCycleObserver cannot be converted to LifecycleObserver
lifecycle.removeObserver(observer);
^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
10 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ‘:image_picker:compileDebugJavaWithJavac’.
> Compilation failed; see the compiler error output for details.
* 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 17s
AndroidX incompatibilities may have caused this build to fail. Please migrate your app to AndroidX. See https://goo.gl/CP92wY.
Finished with error: Gradle task assembleDebug failed with exit code 1