1. project gradle : classpath ‘com.android.tools.build:gradle:4.0.0’
2. app gradle :
compileOptions {
coreLibraryDesugaringEnabled true
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
coreLibraryDesugaring ‘com.android.tools:desugar_djk_libs:1.0.5’
