Flutter Build_Runner 生成楼层时构建失败

Question

flutter 升级后构建失败。

$ flutter pub run build_runner build
[INFO] Generating build script completed, took 331ms

[WARNING] ../../.pub-cache/hosted/pub.dev/floor_generator-1.4.1/lib/misc/type_utils.dart:25:26: Error: The getter 'element' isn't defined for the class 'DartType'.
 - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../.pub-cache/hosted/pub.dev/analyzer-5.0.0/lib/dart/element/type.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'element'.
  bool get isEnumType => element is EnumElement;

如何解决？

形成 pubspec.yaml：

地板生成器：^1.4.1

build_runner：^2.1.2

Answer 1

确保在 flutter 升级后运行

flutter pub get

。然后

flutter pub cache repair

。

Answer 2

我通过向 pubspec.yaml 添加一行来修复此错误

dependency_overrides:
  analyzer: ^5.4.0

Answer 3

使用最新的 flutter 版本，您可以看到错误，然后按照以下步骤操作：

1. 删除了 pubspec.lock
2. 运行 flutter pub get，它会再次安装依赖项运行 flutter pub run build_runner build --delete-conflicting-outputs。

此错误之后应该消失了。