title: An Error: Execution failed for task ':app:processDebugManifest'
body: <p>It was working few days ago. I did not update anything. 
  Removed node_modules folder - same thing.</p>
  
  <p>What might went wrong? Please point to it.</p>
  
  <p>already tried to add to AndroidManifest.xml:</p>
  
  <pre><code>- tools:node="replace"
  or
  - tools:replace="android:appComponentFactory"
    android:appComponentFactory="whatever"
  </code></pre>
  
  <p>Nothing helped.</p>
  
  <p>build.gradle file</p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
      ext {
          buildToolsVersion = "28.0.3"
          minSdkVersion = 19
          compileSdkVersion = 28
          targetSdkVersion = 28
          supportLibVersion = "28.0.0"
          googlePlayServicesAuthVersion = "15.0.1"
      }
      ...
      dependencies {
          classpath 'com.android.tools.build:gradle:3.3.2'
          classpath 'com.google.gms:google-services:4.2.0'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  </code></pre>
  
  <p>Here is an error from console</p>
  
  <pre><code>&gt; Task :app:processDebugManifest FAILED
  ...\android\app\src\debug\AndroidManifest.xml:22:18-91 Error:
          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] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
          Suggestion: add 'tools:replace="android:appComponentFactory"' to &lt;application&gt; element at AndroidManifest.xml:7:5-117 to override.
  
  See http://g.co/androidstudio/manifest-merger for more information about the manifest merger.
  
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':app:processDebugManifest'.
  &gt; 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] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
          Suggestion: add 'tools:replace="android:appComponentFactory"' to &lt;application&gt; element at AndroidManifest.xml:7:5-117 to override.
  </code></pre>