Not able to run flutter run. Getting some androidx error - flutter

Question

My flutter run command is not working now. It was working 4hrs before. Suddenly something happended. I didn't changed anything. Just added few plugins and removed. Because it was not supporting for my SDK version. Already wasted so much time. Please help me on this issue.
Note: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/android/src/main/java/io/flutter/plugins/firebase/cloudfirestore/CloudFirestorePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/android/src/main/java/io/flutter/plugins/firebase/cloudfirestore/CloudFirestorePlugin.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/connectivity-0.4.6/android/src/main/java/io/flutter/plugins/connectivity/ConnectivityBroadcastReceiver.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_webview_plugin-0.3.0+2/android/src/main/java/com/flutter_webview_plugin/WebviewManager.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
e: Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath:
class io.flutter.embedding.engine.plugins.FlutterPlugin.FlutterPluginBinding, unresolved supertypes: androidx.lifecycle.LifecycleOwner
e: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/in_app_update-1.1.11/android/src/main/kotlin/de/ffuf/in_app_update/InAppUpdatePlugin.kt: (8, 28): Unresolved reference: NonNull
e: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/in_app_update-1.1.11/android/src/main/kotlin/de/ffuf/in_app_update/InAppUpdatePlugin.kt: (55, 38): Unresolved reference: NonNull
e: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/in_app_update-1.1.11/android/src/main/kotlin/de/ffuf/in_app_update/InAppUpdatePlugin.kt: (57, 34): Unresolved reference: binaryMessenger
e: /Users/sunisha/Developement/flutter/.pub-cache/hosted/pub.dartlang.org/in_app_update-1.1.11/android/src/main/kotlin/de/ffuf/in_app_update/InAppUpdatePlugin.kt: (63, 40): Unresolved reference: NonNull
When I run Flutter channel;

Answer 1

You are using an old flutter version, change to the stable channel, by executing:
flutter channel stable
and then upgrade flutter by executing:
flutter upgrade
Then you can update your packages by doing:
flutter pub upgrade
https://flutter.dev/docs/development/tools/sdk/upgrading
https://flutter.dev/docs/development/tools/sdk/releases