![Beginning Flutter – Dart Basics – Part 1 | JediPixels - Beginning Flutter: A Hands On Guide To App Development Beginning Flutter – Dart Basics – Part 1 | JediPixels - Beginning Flutter: A Hands On Guide To App Development](https://jedipixels.dev/wp-content/uploads/2019/11/Beginning_Flutter_Dart_Basics_Part_1-scaled.jpg)
Beginning Flutter – Dart Basics – Part 1 | JediPixels - Beginning Flutter: A Hands On Guide To App Development
![Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub](https://user-images.githubusercontent.com/18695388/74608673-81944e80-50e3-11ea-83d5-4436d50696d5.png)
Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub
![Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub](https://user-images.githubusercontent.com/18695388/74608633-2c583d00-50e3-11ea-8806-9d985da3fdf5.png)
Error on Dart 2.7: type '_File' is not a subtype of type 'File' · Issue #50891 · flutter/flutter · GitHub
![flutter - Null Related Error - The argument type 'String? Function(String)' can't be assigned to the parameter type 'String? Function(String?)?' - Stack Overflow flutter - Null Related Error - The argument type 'String? Function(String)' can't be assigned to the parameter type 'String? Function(String?)?' - Stack Overflow](https://i.stack.imgur.com/Gco6Q.png)