flutter build failed. Android dependency 'androidx.core:core' has different version for the compile (1.0.0) and runtime (1.0.1) classpath

try upgrading the gradle dependency: classpath from 'com.android.tools.build:gradle:3.2.1' to 'com.android.tools.build:gradle:3.3.1'

Change versions in your project level build.gradle file

kotlin_version - 1.3.0

com.android.tools.build:gradle:3.3.2 version - 3.3.2

com.google.gms:google-services:4.3.2 version - 4.3.2