title: Manifest Merger Failed issue in the project
body: <p>Following are the error popping up in the output console. Always poping up new error. While opening any of class file there's error coming on the R. Cannot Resolve the symbol R. Please help me out.</p>
  
  <pre><code>Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
  is also present at [androidx.core:core:1.0.0-alpha3] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
  Suggestion: add 'tools:replace="android:appComponentFactory"' to &lt;application&gt; element at AndroidManifest.xml:7:5-74:19 to override.
  </code></pre>
  
  <p>Following the <code>app:Gradle</code> of the project</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 28
      buildToolsVersion "28.0.3"
      defaultConfig {
          applicationId "com.example.lenovo.skanda"
          minSdkVersion 18
          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.android.support:appcompat-v7:28.0.0'
  implementation "androidx.constraintlayout:constraintlayout:2.0.0-alpha1"
  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.android.support:cardview-v7:28.0.0'
  implementation 'com.github.msayan:tutorial-view:v1.0.6'
  implementation 'com.android.support:recyclerview-v7:28.0.0'
  implementation 'com.bignerdranch.android:expandablerecyclerview:1.0.3'
  implementation 'com.firebaseui:firebase-ui-database:0.4.0'
  implementation 'com.google.firebase:firebase-storage:16.0.4'
  
  implementation 'com.google.firebase:firebase-auth:16.0.2'
  implementation 'com.google.firebase:firebase-database:16.0.1'
  implementation 'com.firebaseui:firebase-ui-auth:4.2.1'
  
  implementation 'com.squareup.picasso:picasso:2.71828'
  
  implementation 'com.github.bumptech.glide:glide:4.4.0'
  annotationProcessor 'com.github.bumptech.glide:compiler:4.4.0'
  
  implementation 'com.squareup.okhttp3:okhttp:3.4.1'
  implementation 'org.greenrobot:eventbus:3.0.0'
  //Library for Expendable Text View
  implementation 'com.ms-square:expandableTextView:0.1.4'
  implementation 'me.biubiubiu.justifytext:library:1.1'
  
  implementation 'com.google.firebase:firebase-core:16.0.1'
  implementation 'com.airbnb.android:lottie:2.0.0'
  
  
  implementation 'com.android.support:design:28.0.0'
  
  
  }
  
  apply plugin: 'com.google.gms.google-services'
  com.google.gms.googleservices.GoogleServicesPlugin.config.disableVersionCheck = true
  </code></pre>
  
  <p>Thank you very much for your time and assistance in this matter.</p>