title: layout-lt-mdhas been deprecated. Please use a `layout-gt-<xxx>` variant
body: <p>I'm writing angular program.
  I use angular and <a href="http://materializecss.com/" rel="nofollow">http://materializecss.com/</a></p>
  
  <p>This console logs:</p>
  
  <pre><code>layout-lt-mdhas been deprecated. Please use a `layout-gt-&lt;xxx&gt;` variant.
  angular.js:13424 layout-lt-lghas been deprecated. Please use a `layout-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-lt-mdhas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-lt-lghas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 layout-align-lt-mdhas been deprecated. Please use a `layout-gt-&lt;xxx&gt;` variant.
  angular.js:13424 layout-align-lt-lghas been deprecated. Please use a `layout-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-order-lt-mdhas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-order-lt-lghas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-offset-lt-mdhas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 flex-offset-lt-lghas been deprecated. Please use a `flex-gt-&lt;xxx&gt;` variant.
  angular.js:13424 hide-lt-mdhas been deprecated. Please use a `hide-gt-&lt;xxx&gt;` variant.
  angular.js:13424 hide-lt-lghas been deprecated. Please use a `hide-gt-&lt;xxx&gt;` variant.
  angular.js:13424 show-lt-mdhas been deprecated. Please use a `show-gt-&lt;xxx&gt;` variant.
  angular.js:13424 show-lt-lghas been deprecated. Please use a `show-gt-&lt;xxx&gt;` variant.
  </code></pre>
  
  <p>I'm not using layout of angular.</p>
  
  <p>How to fix this error?</p>