Please help to run the flutter code.

Launching lib\main.dart on V2111 in debug mode…
Upgrading build.gradle
[!] 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’…

FAILURE: Build failed with an exception.

  • What went wrong:
    Task ‘assembleDebug’ not found in root project ‘android’.

  • Try:

Run gradlew tasks to get a list of available tasks.
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.

BUILD FAILED in 10s
ProcessException: Process exited abnormally with exit code 1:

FAILURE: Build failed with an exception.

  • What went wrong:
    Project ‘app’ not found in root project ‘android’.

  • 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.

BUILD FAILED in 1s
Command: C:\Users\acer\Downloads\codecanyon-E0hqMbLO-ondemand-home-services-business-listing-handyman-booking-with-admin-panel\ondemand-home-services-business-listing-handyman-booking-with-admin-panel\update to v300\flutter_application\android\gradlew.bat app:tasks --all --console=auto

I am getting above error code when i run updated version of ’ On-Demand Home Services, Business Listing, Handyman Booking with Admin Panel’ . i can’t figure it out. Please help me to successfully run the code.