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## avoidable_null_assertion
*Replace above with your proposed rule name. (See notes on naming in [Writing Lints].)*
## Description
**AVOID** null assertions when they can be avoided.
You…
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My Xcode version is 15.4 and this is the error log.
```PhaseScriptExecution Run\ Script /Users/unify/Library/Developer/Xcode/DerivedData/Runner-gjduhmogmrltpidnhvspoxgsbyki/Build/Intermediates.no…
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## uncompleted_completer
## Description
One of Completer. complete() or Completer.completeError() should be called.
## Details
One of Completer. complete() or Completer.completeError() mus…
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In some Flutter code, the following can be found***:
```code
/// ...
/// {@tool dartpad}
/// ...
/// sends the focus to the preceding text field when the currently focused
/// field …
jwren updated
3 months ago
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I have looked through many articles and examples, and I understand that Flutter excel currently cannot directly read .xls files. I'm wondering if there are any methods or techniques available to read …
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## Description
Using `first`, `last`, `single`, `[]` methods on `Iterable` can lead to an exception.
## Details
This happened in the linter itself, see e22fdaee0eecfe3b14a650d271d07ce332a4b98…
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## prefer_abstract_final_over_extension_prohibiting_constructor
## Description
Today you can prevent a public class from being _extended_ by adding a private constructor:
```dart
class Foo {…
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## `move_color_to_decoration`
## Description
Don't provide `Container` with both non-null `color` and `decoration`. Place `color` inside `decoration` instead.
## Details
When a `Container`…
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## Your Environment
* Plugin version: 4.3.0
* Platform: iOS or Android both
* OS version: macOS 11.2.3
* Device manufacturer / model: doesn't matter
* Flutter info (`flutter doctor`):
```…
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Problem: pressing keys produces "ding" sound on macOS.
Repro code: https://github.com/flet-dev/examples/blob/main/python/controls/page/keyboard-events.py
Possible solution: https://github.com/flutte…