error after updating minsdkversion in flutter 2.8 - flutter

Question

I am a beginner in flutter. I have update minSdkVersion from 19 to 21 and getting the following error. Please Please help. any kind of help is much appreciated. Thank you in advance.
Manifest merger failed : Attribute application#label value=(Car_Wash_App) from AndroidManifest.xml:11:9-37
is also present at [org.jfrog.cardinalcommerce.gradle:cardinalmobilesdk:2.2.4-1] AndroidManifest.xml:15:9-41 value=(#string/app_name).
Suggestion: add 'tools:replace="android:label"' to <application> element at AndroidManifest.xml:9:5-48:19 to override.
here is the manifest file
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.Car_Wash_App">
<!-- io.flutter.app.FlutterApplication is an android.app.Application that
calls FlutterMain.startInitialization(this); in its onCreate method.
In most cases you can leave this as-is, but you if you want to provide
additional functionality it is fine to subclass or reimplement
FlutterApplication and put your custom class here. -->
<application
android:name="io.flutter.app.FlutterApplication"
android:label="Car_Wash_App"
android:icon="#mipmap/ic_launcher"
tools:replace="android:label">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="#style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="#style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="#drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>

Answer 1

Buddy you just need to migrate your project to androidX
open android directory of your project in android studio
wait for gradle to finish its task
then go to tools -> migrate to androidX
click migrate
click do refactor
or you can simply follow steps from following answer https://stackoverflow.com/a/54857699/16793736

Answer 2

You have to change your android manifest file like below
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example">
<application
android:allowBackup="true"
android:label="#string/app_name"
android:supportsRtl="true">
</application>
</manifest>
To
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.name"
xmlns:tools="http://schemas.android.com/tools">
<application
android:allowBackup="true"
android:label="App Name"
android:supportsRtl="true"
tools:replace="android:label">
</application>
</manifest>
And now the android:label is replaced by the label from the parent application.