title: Failed to resolve: com.google.firebase:firebase-firestore:16.0.1
body: <p>I'm switching from realtime database to firestore and I keep getting the same error:</p>
  
  <p>Failed to resolve: com.google.firebase:firebase-firestore:16.0.1</p>
  
  <p>I have looked at similar questions on this site but still haven't been able to fix this problem.
  Here is the code from my app gradle:</p>
  
  <pre><code>apply plugin: 'com.google.gms.google-services'
  
  android {
      compileSdkVersion 28
      defaultConfig {
          applicationId "com.example.marykate.marykatefordefyp"
          minSdkVersion 15
          targetSdkVersion 28
          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.android.support:appcompat-v7:28.0.0'
      implementation 'com.android.support:recyclerview-v7:28.0.0'
      implementation 'com.android.support.constraint:constraint-layout:1.1.3'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.2'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
      implementation 'com.google.firebase:firebase-core:16.0.1'
      //dependency for using firebase database
      implementation 'com.google.firebase:firebase-database:16.0.1'
      //dependency for email and password authentication
      implementation 'com.google.firebase:firebase-auth:16.0.1'
      //dependency for cloud storage
      implementation 'com.google.firebase:firebase-storage:16.0.1'
      implementation 'com.google.firebase:firebase-auth:16.0.1'
      implementation 'com.google.firebase:firebase-firestore:16.0.1'
  } 
  </code></pre>
  
  <p>and the code from my project gradle is as follows:</p>
  
  <pre><code>
      repositories {
          google()
          jcenter()
  
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.2.0'
          classpath 'com.google.gms:google-services:4.0.2'
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          google()
          jcenter()
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  } 
  </code></pre>
  
  <p>Could anyone help me with this?</p>