title: No constructor 'Text.' with matching arguments declared in class 'Text'
body: <p>I'm using flutter module in my existing iOS app. While making changes I often use hot reload to see the output. It was working fine until yesterday, but when I use hot reload now, its giving me the exception:</p>
  <pre><code>The following NoSuchMethodError was thrown building PurchaseOrders(dirty, dependencies: [_InheritedTheme, _LocalizationsScope-[GlobalKey#4a83e]], state: _PurchaseOrdersState#a115b):
  No constructor 'Text.' with matching arguments declared in class 'Text'.
  Receiver: Text
  Tried calling: new Text.()
  Found: new Text.(String, {Key key, TextStyle style, StrutStyle strutStyle, TextAlign textAlign, TextDirection textDirection, Locale locale, bool softWrap, TextOverflow overflow, double textScaleFactor, int maxLines, String semanticsLabel, TextWidthBasis textWidthBasis, TextHeightBehavior textHeightBehavior}) =&gt; Text
  
  Widget creation tracking is currently disabled. Enabling it enables improved error messages. It can be enabled by passing `--track-widget-creation` to `flutter run` or `flutter test`.
  </code></pre>
  <p>I've tried: File -&gt; Invalidate Caches/Restart. But didn't help me out. I have to stop and run every time I make any small change. What could be the issue ?</p>