title: Room - Schema export directory is not provided to the annotation processor so we cannot export the schema
body: <p>I am using Android Database Component Room</p>
  
  <p>I've configured everything, but when I compile, Android Studio gives me this warning:</p>
  
  <blockquote>
    <p>Schema export directory is not provided to the annotation processor so
    we cannot export the schema. You can either provide
    <code>room.schemaLocation</code> annotation processor argument OR set
    exportSchema to false.</p>
  </blockquote>
  
  <p>As I understand it is the location where DB file will be located</p>
  
  <p>How can it affect my app? What is the best practice here? Should I use the default location (<code>false</code> value)?</p>