title: Gradle error 'Unable to resolve dependency' could not find 'com.applovin:applovin-sdk'
body: <p>I try to add AppLovin dependency but I get error like this:</p>
  
  <blockquote>
    <p>ERROR: Unable to resolve dependency for ':app@debug/compileClasspath':
    Could not find 'com.applovin:applovin-sdk:+'. Show Details Affected
    Modules: app</p>
    
    <p>ERROR: Unable to resolve dependency for
    ':app@debugAndroidTest/compileClasspath': Could not find
    'com.applovin:applovin-sdk:+'. Show Details Affected Modules: app</p>
    
    <p>ERROR: Unable to resolve dependency for
    ':app@debugUnitTest/compileClasspath': Could not find
    'com.applovin:applovin-sdk:+'. Show Details Affected Modules: app</p>
  </blockquote>
  
  <pre><code>buildscript {
      repositories {
          maven { url 'https://plugins.gradle.org/m2/'}
      }
      dependencies {
          classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.11.0, 0.99.99]'
      }
  }
  apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'
  
  repositories {
      maven { url 'https://maven.google.com' }
  }
  apply plugin: 'com.android.application'
  
  repositories {
      jcenter()
  }
  
  repositories {
      // You can also use jcenter if you prefer
      mavenCentral()
  }
  
  android {
  
      compileSdkVersion 28
      buildToolsVersion '28.0.3'
  
      defaultConfig {
          applicationId 'com.example.application'
          minSdkVersion 21
          targetSdkVersion 28
          versionCode 2
          versionName '1.3'
  
          manifestPlaceholders = [
                  onesignal_app_id: '1234567891011121314',
                  // Project number pulled from dashboard, local value is ignored.
                  onesignal_google_project_number: 'REMOTE']
      }
  
      lintOptions {
          disable 'MissingTranslation'
      }
  
      buildTypes {
          release {
              minifyEnabled false
              shrinkResources 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:animated-vector-drawable:28.0.0'
      implementation 'com.android.support:support-v4:28.0.0'
      implementation 'com.android.support:design:28.0.0'
      implementation 'com.android.support:recyclerview-v7:28.0.0'
      implementation 'com.android.support:cardview-v7:28.0.0'
  
      implementation 'com.onesignal:OneSignal:[3.9.1, 3.99.99]'
  
      implementation 'com.daimajia.numberprogressbar:library:1.4@aar'
      implementation 'com.amitshekhar.android:android-networking:0.2.0'
      implementation 'com.google.code.gson:gson:2.7'
     // implementation 'com.google.android.gms:play-services-ads:17.1.2'
  
      implementation 'com.airbnb.android:lottie:2.7.0'
      implementation 'com.jwang123.flagkit:flagkit:1.0'
      implementation 'fr.bmartel:jspeedtest:1.32.1'
      implementation 'com.github.anastr:speedviewlib:1.1.0'
      implementation 'agency.tango.android:material-intro-screen:0.0.5'
      implementation 'com.yarolegovich:lovely-dialog:1.1.0'
      implementation 'com.getkeepsafe.taptargetview:taptargetview:1.12.0'
      implementation 'com.google.firebase:firebase-core:16.0.6'
      implementation 'com.google.firebase:firebase-messaging:17.3.4'
  
      implementation 'com.android.support.constraint:constraint-layout:1.1.3'
      testImplementation 'junit:junit:4.12'
  
      // Required Dependency by Audience Network SDK
      implementation 'com.android.support:support-annotations:28.0.0'
      implementation 'com.facebook.android:audience-network-sdk:5.4.1'
  
      implementation "'com.applovin:applovin-sdk:+'"
  }
  apply plugin: 'com.google.gms.google-services'
  </code></pre>