'Flutter - Android resource linking failed

I upgraded flutter to 2.10 version, and because some error was popping after upgrading to new version, I changed some code as given here -

https://medium.com/@debjeet.debnath001/flutter-application-is-created-using-an-older-version-of-the-android-embedding-v2-1a1b0744c82c

and https://github.com/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects

Please someone help me.

Here is the error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Android resource linking failed
  C:\Users\Hp\.gradle\caches\transforms-2\files-2.1\b5b2e8f04cfcbf58ee08384a05e35d00\res\values\values.xml:85:5-117: AAPT: error: resource drawable/[launch_background] (aka in.newApp.consumer:drawable/[launch_background]) not found.

  error: failed linking references.

* 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 53s
Exception: Gradle task assembleDebug failed with exit code 1


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