title: Could not find androidx.appcompat:appcompat:28.0.0
body: <p>I updated <code>compileSDkversion</code> from 27 to 28. </p>
  
  <p>Added in <code>gradle.properties</code> file:</p>
  
  <pre><code>android.useAndroidX=true
  android.enableJetifier=true
  </code></pre>
  
  <p>in <code>build gradle</code> added: </p>
  
  <pre><code>implementation 'androidx.appcompat:appcompat:1.0.2'
  implementation 'androidx.core:core:1.0.2'
  </code></pre>
  
  <p>Refactored support libraries to androidX libraries in build.gradle. </p>
  
  <p>I'm getting a build error: </p>
  
  <blockquote>
    <p>Could not find androidx.appcompat:appcompat:28.0.0</p>
  </blockquote>
  
  <p>What is the problem? What else should I change? </p>
  
  <p>P.S: this is expoKit react-native project</p>