无法创建 moor_database.g.dart 文件

Question

每次我运行 "build_runner watch" 命令时，我都会收到一个错误，提示 0/3 操作已完成我拥有上次更新的所有依赖项我尝试搜索问题但找不到任何解决方案..仍在搜索中，我希望我能在这里找到一些帮助：

flutter packages pub run build_runner watch
[INFO] Generating build script...
[INFO] Generating build script completed, took 395ms

[INFO] Creating build script snapshot......
[INFO] Creating build script snapshot... completed, took 13.4s

[INFO] Setting up file watchers...
[INFO] Setting up file watchers completed, took 12ms

[INFO] Waiting for all file watchers to be ready...
[INFO] Waiting for all file watchers to be ready completed, took 108ms

[INFO] Initializing inputs
[INFO] Building new asset graph...
[INFO] Building new asset graph completed, took 1.3s

[INFO] Checking for unexpected pre-existing outputs....
[INFO] Checking for unexpected pre-existing outputs. completed, took 2ms

[INFO] Running build...
[INFO] 1.1s elapsed, 0/3 actions completed.
[INFO] 2.1s elapsed, 0/3 actions completed.
[INFO] 5.2s elapsed, 0/3 actions completed.
[INFO] 6.3s elapsed, 0/3 actions completed.
[INFO] 11.1s elapsed, 0/3 actions completed.
[INFO] 12.3s elapsed, 0/3 actions completed.
[SEVERE] moor_generator:moor_generator on lib/db/db.dart:
Error running MoorGenerator
NoSuchMethodError: The getter 'typeConverter' was called on null.
Receiver: null
Tried calling: typeConverter
[SEVERE] moor_generator:moor_generator on lib/db/db.dart:
Error running DaoGenerator
NoSuchMethodError: The getter 'typeConverter' was called on null.
Receiver: null
Tried calling: typeConverter
[INFO] Running build completed, took 12.6s

[INFO] Caching finalized dependency graph...
[INFO] Caching finalized dependency graph completed, took 95ms

[SEVERE] Failed after 12.7s

Answer 1

您是否尝试删除 moor_database.g.dart，然后再次删除运行 "build_runner watch"？

Answer 2

你能试试运行ning 这个命令吗，flutter packages pub 运行 build_runner build --delete-conflicting-outputs

Answer 3

请查看 .g.dart 文件名应该与数据库文件名完全一样，即 id 你的文件名是 'database_helper.dart' 那么它应该是 'database_helper.g.dart' 的一部分然后只有 g.dart 文件将被创建

无法创建 moor_database.g.dart 文件

Can't create moor_database.g.dart file

flutter

flutter-moor

build-runner