NoSuchMethodError: The getter 'width' was called on null. about flutter_launcher_icons HOT 5 CLOSED

name: deneme
description: A new Flutter project.

# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# Read more about versioning at semver.org.
version: 1.0.0+1

environment:
  sdk: ">=2.0.0-dev.68.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter
  shared_preferences: ^0.4.3
  flutter_staggered_grid_view: "^0.2.3"
  flutter_colorpicker: ^0.1.0
  http: ^0.12.0
  flutter_launcher_icons: "^0.7.0"

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter_icons:
  ios: true
  android: true
  image_path: "assets/icon.png"



# For information on the generic Dart part of this file, see the
# following page: https://www.dartlang.org/tools/pub/pubspec

# The following section is specific to Flutter.
flutter:

  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  assets:
    - assets/banner.png
  #  - images/a_dot_burr.jpeg
  #  - images/a_dot_ham.jpeg