title: java.lang.RuntimeException: Missing type parameter
body: <p>My project encountered this error:</p>
  <p><a href="https://i.stack.imgur.com/1VVIh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1VVIh.png" alt="enter image description here" /></a></p>
  <p>I tried to fix it using <a href="https://stackoverflow.com/questions/8129040/proguard-missing-type-parameter?">this</a> link</p>
  <p>but I can not because I do not really understand the answer. Please tell me how to fix it. Thanks</p>