title: Flutter easy_localization and intl version solving failed
body: <p>I'm getting this error after updating <code>flutter</code> to version 1.25.0-8.1.pre-</p>
  <pre><code>Because `easy_localization` &gt;=2.1.0+1 depends on `flutter_localizations` any from sdk which depends on `intl` 0.17.0-nullsafety.2, `easy_localization` &gt;=2.1.0+1 requires `intl` 0.17.0-nullsafety.2.
  So, because news_app depends on both `easy_localization` ^2.3.3 and `intl` ^0.16.1, version solving failed.
  pub get failed (1; So, because news_app depends on both `easy_localization` ^2.3.3 and `intl` ^0.16.1, version solving failed.)
  </code></pre>
  <p>I have <code>easy_localization</code> 2.3.3, <code>intl</code> 0.16.0 and <code>dart</code> 2.12.0 installed. Please help</p>