app runs but i get this in the debug window!

[ernestsheldon]

this is of branch lesson 21
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════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
The following NoSuchMethodError was thrown building BrewList(dirty, dependencies: [InheritedProvider<List>], state: _BrewListState#f51fb):
The getter 'length' was called on null.
Receiver: null
Tried calling: length

User-created ancestor of the error-causing widget was:
Scaffold file:///home/ndragonx/flutterprojectsvscode/grub_retriever/grub_retriever/lib/screens/home/home.dart:26:14
When the exception was thrown, this was the stack:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
#1 _BrewListState.build (package:grub_retriever/screens/home/brew_list.dart:17:24)
#2 StatefulElement.build (package:flutter/src/widgets/framework.dart:4047:27)
#3 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3941:15)
#4 Element.rebuild (package:flutter/src/widgets/framework.dart:3738:5)
...
════════════════════════════════════════════════════════════════════════════════════════════════════

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