title: Type mismatch: inferred type is String? but String was expected kotlin
body: <p>I got error message:</p>
  <pre class="lang-none prettyprint-override"><code>AddAddressActivity.kt: (69, 53): Type mismatch: inferred type is String? but String was expected
  </code></pre>
  <p><a href="https://i.stack.imgur.com/MvOl9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MvOl9.png" alt="enter image description here" /></a></p>