Failed to resolve: android.arch.lifecycle:extensions:1.0.0-alpha1 android studio 3.0

Question

I am building a project in android studio 3.0 with android plugin \'com.android.tools.build:gradle:3.0.0-alpha1\' and gradle version gradle-4.0-milestone-1-al

Answer 1

Add in app/gradle file

compile "android.arch.lifecycle:extensions:1.0.0-alpha4"
compile "android.arch.persistence.room:runtime:1.0.0-alpha4"
annotationProcessor "android.arch.lifecycle:compiler:1.0.0-alpha4"
annotationProcessor "android.arch.persistence.room:compiler:1.0.0-alpha4"

add maven to project based gradle

allprojects {
repositories {
    jcenter()
    maven { url 'https://maven.google.com' }
}
}

it will compile easily