disable kotlin-android-extensions deprecation warning

Question

My project's migration to View Binding is underway but in the meantime this warning is distracting when looking at build logs

Warning: The 'kotlin-android-extensions' Gradle plugin is deprecated. Please use this migration guide (https://goo.gle/kotlin-android-extensions-deprecation) to start working with View Binding (https://developer.android.com/topic/libraries/view-binding) and the 'kotlin-parcelize' plugin.

How can I disable it?

Answer 1

I also recently faced this problem and found out.

In Kotlin 1.4.20-M2, JetBrains deprecated the Kotlin Android Extensions compiler plugin in favor of View Binding, and Also, Google is promoting modularisation, but synthetic properties don’t work cross-module.

So to fix this warning. Remove apply plugin: 'kotlin-android-extensions' in your build.gradle file

Note: If you're using Parcelize.

Don’t forget that the Parcelize feature in Kotlin is part of the kotlin-android-extensions compiler plugin, so removing the plugin will end up making all your Parcelable classes not compiling if they depend on the Parcelize annotation.

JetBrains extracted the Parcelize from Kotlin Android Extensions to a new plugin, kotlin-parcelize

First, you will need to add kotlin-parcelize plugin to your project build.gradle file.

Plugins {
   ...
   id 'kotlin-parcelize'
}

Then change your old import statement from

import kotlinx.android.parcel.Parcelize

to

import kotlinx.parcelize.Parcelize

For more info, I recommend you to read this Blog Migrating the deprecated Kotlin Android Extensions compiler plugin

Answer 2

Just you need to remove this line from your Gradle:

apply plugin: 'kotlin-android-extensions'