enter image description here

buildscript {     repositories{         google()         mavenCentral()     } } allprojects {     repositories {         google()         mavenCentral()     } }  dependencies {     classpath 'com.google.gms:google-services:4.4.1' }   rootProject.buildDir = '../build' subprojects {     project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects {     project.evaluationDependsOn(':app') }  tasks.register("clean", Delete) {     delete rootProject.buildDir }

the problem is on the pic please help me