Flutter 错误状态：意外诊断：颤振升级到1.20.1后

问题是什么

xxx@xxx-Inspiron-14-3467:~/xxx$ flutter pub run build_runner build[INFO] Generating build script...
[INFO] Generating build script completed, took 406ms

[WARNING] Deleted previous snapshot due to missing asset graph.
[INFO] Creating build script snapshot......
[INFO] Creating build script snapshot... completed, took 14.6s

[INFO] Initializing inputs
[INFO] Building new asset graph...
[INFO] Building new asset graph completed, took 773ms

[INFO] Checking for unexpected pre-existing outputs....
[INFO] Checking for unexpected pre-existing outputs. completed, took 1ms

[INFO] Running build...
[INFO] Generating SDK summary...
[SEVERE] chopper_generator:chopper_generator on test/widget_test.dart:

Bad state: Unexpected diagnostics:
/home/xxx/Desktop/flutter_linux_1.20.1-stable/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] chopper_generator:chopper_generator on test/widget_test.dart:

Bad state: Unexpected diagnostics:
/home/xxx/Desktop/flutter_linux_1.20.1-stable/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[INFO] 1.6s elapsed, 1/17 actions completed.
[INFO] 2.7s elapsed, 1/17 actions completed.
[INFO] 3.8s elapsed, 1/17 actions completed.
[INFO] 4.9s elapsed, 1/17 actions completed.
[INFO] 6.0s elapsed, 1/17 actions completed.
[INFO] 7.1s elapsed, 1/17 actions completed.
[INFO] 8.2s elapsed, 1/17 actions completed.
[INFO] 9.3s elapsed, 1/17 actions completed.
[INFO] 10.4s elapsed, 1/17 actions completed.
[INFO] 11.5s elapsed, 1/17 actions completed.
[INFO] 12.6s elapsed, 1/17 actions completed.
[INFO] 13.7s elapsed, 1/17 actions completed.
[INFO] 14.8s elapsed, 1/17 actions completed.
[WARNING] No actions completed for 15.1s, waiting on:
  - chopper_generator:chopper_generator on lib/repository/model/radio_model.dart
  - chopper_generator:chopper_generator on lib/repository/model/xxx.dart
  - chopper_generator:chopper_generator on lib/repository/model/time.dart
  - chopper_generator:chopper_generator on lib/repository/model/assign_to.dart
  - chopper_generator:chopper_generator on lib/repository/model/defect_cases_count.dart
  .. and 11 more

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在花了3个多小时之后，我终于解决了这个问题

对于升级到Flatter版本1.20.1或更高版本的用户，请确保在

pubspec.yaml

中添加此行

dependency_overrides:
  analyzer: '0.39.14'

我也有同样的问题：

请在您的pubspec文件中尝试此选项

dependency_overrides:
  analyzer: '0.39.17'    
  build_resolvers: '1.3.10'

试试看：

1-

颤振清洁

2-进入开发频道：

颤振频道开发

3-升级：

flatter升级-强制

4-

flatter pub get

5-尝试建立

6-返回稳定通道或主通道：

颤振通道稳定

（

颤振通道主通道

）

---

7-升级：

flatter升级--force

我也有同样的问题，如果接受的答案不能解决您的问题，您可以尝试以下步骤：

• flatter clean

• flatter pub get

• flatter软件包升级

---

Just

analyzer:^0.39.17

直接依赖开发为我工作