Fix for "There is no deobfuscation file associated with this App Bundle." in Google Play Console. 

The clear explanation given on how to obfuscate the code using R8 compiler and how to fix "There is no deobfuscation file associated with this App Bundle." warning in Google Play Console.
Include the below code in build.gradle file.
buildTypes {
release {
shrinkResources true
minifyEnabled true
proguardFiles
getDefaultProguardFile('proguard-android.txt'),
'proguard-rules.pro'
}
}
#nodeobfuscationfile
#androidappbundle
#googleplayconsole
#obfuscate