admob - AdView not recognized in Android Studio -

i trying integrate admob in app, android studio can't find libraries:

import com.google.android.gms.ads.adrequest; import com.google.android.gms.ads.adview; 

this top-level gradle:

buildscript { repositories {     jcenter() } dependencies {     classpath 'com.android.tools.build:gradle:2.1.2'     classpath 'com.google.gms:google-services:3.0.0'      // note: not place application dependencies here; belong     // in individual module build.gradle files } }  allprojects { repositories {     jcenter() } } 

and project-level gradle:

apply plugin: 'com.android.application'  android { compilesdkversion 24 buildtoolsversion "24.0.1"  defaultconfig {     applicationid "com.tomhogenkamp.personalcalc"     minsdkversion 16     targetsdkversion 24     versioncode 4     versionname "1.0" } buildtypes {     release {         minifyenabled false         proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'     } } }  dependencies { compile filetree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:24.1.1' compile 'com.google.firebase:firebase-core:9.4.0' compile 'com.github.yukuku:ambilwarna:2.0.1' }  apply plugin: 'com.google.gms.google-services' 

i have added admob in more apps, had no troubles this.

can me?

thanks!

it looks you're missing dependency ads. build.gradle:

dependencies {   compile filetree(dir: 'libs', include: ['*.jar'])   compile 'com.android.support:appcompat-v7:24.1.1'   compile 'com.google.firebase:firebase-core:9.4.0'   compile 'com.github.yukuku:ambilwarna:2.0.1' } 

should have additional line:

dependencies {   compile filetree(dir: 'libs', include: ['*.jar'])   compile 'com.android.support:appcompat-v7:24.1.1'   compile 'com.google.firebase:firebase-core:9.4.0'   compile 'com.google.firebase:firebase-ads:9.4.0'   compile 'com.github.yukuku:ambilwarna:2.0.1' } 

for more info, wrote blog post ways import mobile ads sdk firebase. there's episode of mobile ads garage covers this.