Failed to resolve: com.google.firebase:firebase-core:16.0.1
Clash Royale CLAN TAG #URR8PPP Failed to resolve: com.google.firebase:firebase-core:16.0.1 I'm trying to add firebase cloud storage to my app. Below is the app build.gradle. But it says: Failed to resolve: com.google.firebase:firebase-core:16.0.1. Why? There is no firebase-core in the dependencies at all. apply plugin: 'com.android.application' android { compileSdkVersion 27 defaultConfig { applicationId "com.louise.udacity.mydict" minSdkVersion 15 targetSdkVersion 27 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com....