无法创建颤振项目：没有为输出目录错误指定选项
Posted
技术标签:
【中文标题】无法创建颤振项目：没有为输出目录错误指定选项【英文标题】：Unable to create a flutter project: No option specified for the output directory error 【发布时间】：2021-08-24 11:13:36 【问题描述】：我正在尝试创建一个新的 Flutter 项目。我试过了，
1.flutter create 和
flutter create --org com.domain.appname
他们都返回了以下内容。
No option specified for the output directory.
Create a new Flutter project.
If run on a project that already exists, this will repair the project,
recreating any files that are missing.
Global options:
-h, --help Print this usage information.
-v, --verbose Noisy logging, including all shell commands
executed.
If used with "--help", shows hidden options. If used
with "flutter doctor", shows additional diagnostic
information. (Use "-vv" to force verbose logging in
those cases.)
-d, --device-id Target device id or name (prefixes allowed).
--version Reports the version of this tool.
--suppress-analytics Suppress analytics reporting when this command runs.
Usage: flutter create <output directory>
-h, --help Print this usage information.
--[no-]pub Whether to run "flutter pub get" after the project
has been created.
(defaults to on)
--[no-]offline When "flutter pub get" is run by the create
command, this indicates whether to run it in
offline mode or not. In offline mode, it will need
to have all dependencies already available in the
pub cache to succeed.
--[no-]overwrite When performing operations, overwrite existing
files.
--description The description to use for your new Flutter
project. This string ends up in the pubspec.yaml
file.
(defaults to "A new Flutter project.")
--org The organization responsible for your new Flutter
project, in reverse domain name notation. This
string is used in Java package names and as prefix
in the ios bundle identifier.
(defaults to "com.example")
--project-name The project name for this new Flutter project. This
must be a valid dart package name.
-i, --ios-language The language to use for iOS-specific code, either
ObjectiveC (legacy) or Swift (recommended).
[objc, swift (default)]
-a, --android-language The language to use for Android-specific code,
either Java (legacy) or Kotlin (recommended).
[java, kotlin (default)]
--platforms The platforms supported by this project. Platform
folders (e.g. android/) will be generated in the
target project. This argument only works when
"--template" is set to app or plugin. When adding
platforms to a plugin project, the pubspec.yaml
will be updated with the requested platform. Adding
desktop platforms requires the corresponding
desktop config setting to be enabled.
[ios (default), android (default), windows
(default), linux (default), macos (default), web
(default)]
-t, --template=<type> Specify the type of project to create.
[app] (default) Generate a Flutter application.
[module] Generate a project to add a Flutter module to an
existing Android or iOS application.
[package] Generate a shareable Flutter project containing
only Dart code.
[plugin] Generate a shareable Flutter project containing an
API in Dart code with a platform-specific
implementation for Android, for iOS code, or for
both.
-s, --sample=<id> Specifies the Flutter code sample to use as the
"main.dart" for an application. Implies
"--template=app". The value should be the sample ID
of the desired sample from the API documentation
website (http://docs.flutter.dev/). An example can
be found at:
https://api.flutter.dev/flutter/widgets/SingleChild
ScrollView-class.html
--list-samples=<path> Specifies a JSON output file for a listing of
Flutter code samples that can be created with
"--sample".
Run "flutter help" to see global options.
下面是我的flutter doctor 输出。
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.2.3, on macOS 11.4 20F71 darwin-arm, locale
en-LK)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.2)
[✓] VS Code (version 1.59.1)
[✓] Connected device (2 available)
• No issues found!
我正在使用 MacBook Pro M1 芯片笔记本电脑，有帮助吗？
这是怎么回事？
【问题讨论】：
【参考方案1】：我认为我提出一个简单的问题非常愚蠢，也许我只是长时间工作太累了。无论如何，我犯了一个错误，这是答案。
flutter create --org com.domain appname
注意appname 和com.domain 之间的空格
【讨论】：
【参考方案2】：您忘记添加输出目录。您需要将其放在 --org 调用之前：
颤振创建 . --org....
.是当前目录，或者指定一个使用
C:/Users/...你的目录路径
【讨论】：
对不起，这也不起作用。它说multiple output directories specified。也许您可以发布完整的命令以确保防错？
另外这个提到的输出目录不是我以前做过的，尽管我已经开发了很多flutter应用程序。
使用 dot . 来指定对我有用的当前目录 flutter create 。 --platforms=windows,macos,linux --org com.packagname 虽然，我只能添加对 macos 的支持；鉴于这是我当前的操作系统以上是关于无法创建颤振项目：没有为输出目录错误指定选项的主要内容，如果未能解决你的问题，请参考以下文章