我正在关注 Google 的 Flutter Googlemaps 代码实验室,
https://codelabs.developers.google.com/codelabs/google-maps-in-flutter/#5
G 实验室 说
添加此代码后,您的 IDE(如果您正在使用)应该显示一些红色曲线,因为它引用了一个不存在的同级文件,locations.g.dart。这个生成的文件在无类型 JSON 结构和命名对象之间进行转换。通过运行 build_runner 创建它:
Build runner 应该输出这个:
$ flutter packages pub run build_runner build
[INFO] Generating build script...
[INFO] Generating build script completed, took 291ms
[INFO] Initializing inputs
[INFO] Reading cached asset graph...
[INFO] Reading cached asset graph completed, took 65ms
[INFO] Checking for updates since last build...
[INFO] Checking for updates since last build completed, took 595ms
[INFO] Running build...
[INFO] 1.2s elapsed, 0/1 actions completed.
[INFO] Running build completed, took 1.2s
[INFO] Caching finalized dependency graph...
[INFO] Caching finalized dependency graph completed, took 27ms
[INFO] Succeeded after 1.2s with 1 outputs (1 actions)
$
- 我已将 'build_runner: ^1.2.7' dev_dependency 添加到我的 .yaml 文件中,进行了一些谷歌搜索,在 Android Studio 终端中尝试了各种命令,但没有一个被识别。
- 我尝试将终端目录从我的应用程序目录更改为 C:/flutter 目录,但仍然无法识别命令。
我不知道该怎么做。在他们从控制台打印出来的光标克拉是 $,它不会出现在 Windows 10 上的 Android Studio 控制台中,所以......混乱。
这是所要求的 .yaml 文件
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
google_maps_flutter: ^0.5.11
http: ^0.12.0+1
json_serializable: ^2.0.2
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^0.1.3
dev_dependencies:
pedantic: ^1.4.0
build_runner: ^1.2.7
flutter_test:
sdk: flutter