title: Android Studio 3.2.1: Unfixable Gradle Error
body: <p>I was trying to create a messaging feature for my application. However, I no longer have to create this feature and I don't know what code I need to delete so that these errors will no longer occur:</p>
  
  <blockquote>
    <p>Gradle sync failed: Cannot resolve external dependency
    com.google.gms:google-services:4.2.0 because no repositories are
    defined. Required by: project : Consult IDE log for more details (Help
    | Show Log) (504 ms)</p>
  </blockquote>
  
  <p>Here's my gradle file:</p>
  
  <pre><code>apply plugin: 'com.android.application'
  apply plugin: 'com.google.gms.google-services'
  
  
  
  android {
      compileSdkVersion 28
      defaultConfig {
          applicationId "com.android.SPELFIT.profile"
          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.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'
  
  }
  
  dependencies {
      implementation ('com.h6ah4i.android.widget.advrecyclerview:advrecyclerview:0.11.0@aar'){
          transitive=true
      }
  }
  
  
  repositories {
      jcenter()
  }
  </code></pre>