Error:Could not resolve all files for configuration ':app:debugCompileClasspath'.

Error:Could not resolve all files for configuration ':app:debugCompileClasspath'.

Answer: Moving the google() to the top of the repositories fixed issue.

let me know , How do that

android --> build.gradle 

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    ext {

        buildToolsVersion = "27.0.3"

        minSdkVersion = 16

        compileSdkVersion = 27

        targetSdkVersion = 27

        supportLibVersion = "27.1.1"

    }

    repositories {

        google()              

        jcenter()

        

    }

    dependencies {

        classpath 'com.android.tools.build:gradle:3.1.4'

        // NOTE: Do not place your application dependencies here; they belong

        // in the individual module build.gradle files

    }

}

allprojects {

    repositories {

        google()           

        mavenLocal()

        jcenter()

        maven {

            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm

            url "$rootDir/../node_modules/react-native/android"

        }

        

    }

}

task wrapper(type: Wrapper) {

    gradleVersion = '4.4'

    distributionUrl = distributionUrl.replace("bin", "all")

}