title: i am getting Error: Not found: 'dart:html'
body: <p>How can i solve this error and please tell me why do we get this ,
  the given below is my main.dart file</p>
  <p><a href="https://i.stack.imgur.com/RcoVk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RcoVk.png" alt="enter image description here" /></a></p>