title: Failed to find Build Tools revision 29.0.0 - Android Builds
body: <p>Now from my all Android projects, I can't able to export Android builds after updating library using Android Studio. I was, again and again, getting the same error:</p>
  
  <p><a href="https://i.stack.imgur.com/XBgSi.png" rel="noreferrer"><img src="https://i.stack.imgur.com/XBgSi.png" alt="enter image description here"></a></p>
  
  <p>This project does not contain any kind of external plugins installed. Then also I was getting this error, just two days before it was working properly.</p>
  
  <p>EDIT: Android SDK tools folder content:
  <a href="https://i.stack.imgur.com/JYD74.png" rel="noreferrer"><img src="https://i.stack.imgur.com/JYD74.png" alt="enter image description here"></a></p>