Flutter-命令行-仿真器-未找到设备

Question

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只需DL，即可在Windows 10电脑上开始使用Flutter。

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Visual Studio Code及其Flutter / Dart插件的文件夹Android Studio及其Flutter / Dart插件

现在，我可以启动Android Studio并选择一个模拟器（默认情况下显示“未连接任何设备”），运行并运行该模拟器，但是如果我进入命令行，则会得到结果，之后我会使用“ flutter模拟器” ''扑医生'

当我告诉它检查模拟器时，它告诉我“要运行模拟器，请运行'flutter模拟器-launch'”，在哪里可以找到ID？

C:\Users\admin\Desktop\Computer Science\Flutter Projects\first_app>flutter 
run
No connected devices.

C:\Users\admin\Desktop\Computer Science\Flutter Projects\first_app>flutter 
emulators
2 available emulators:

Nexus_5X_API_28_x86 • Nexus 5X • Google • Nexus 5X API 28 x86
Nexus_6P            • Nexus 6P • Google • Nexus 6P

To run an emulator, run 'flutter emulators --launch <emulator id>'.
To create a new emulator, run 'flutter emulators --create [--name xyz]'.

You can find more information on managing emulators at the links below:
https://developer.android.com/studio/run/managing-avds
https://developer.android.com/studio/command-line/avdmanager

C:\Users\admin\Desktop\Computer Science\Flutter Projects\first_app>flutter 
doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel beta, v0.8.2, on Microsoft Windows [Version 
10.0.17134.285], locale en-US)
[?] Android toolchain - develop for Android devices (Android SDK 28.0.3)
[?] Android Studio (version 3.2)
[?] VS Code (version 1.27.2)
[!] Connected devices
    ! No devices available

! Doctor found issues in 1 category.

Answer 1

步骤1：在cmd中进入您创建flutter项目的项目文件夹（使用cd Root/of/your/project）

步骤 2：运行以下命令：

flutter emulators --create <whateverIdYouLike>
(Eg:- For my project I used `flutter emulators --create Nexus_6`)

这应该给你这样的信息：

“模拟器 [名称] 创建成功。”

步骤 3：输入以下命令：

flutter emulators

您将看到模拟器已成功添加。

步骤 4：使用以下命令启动模拟器：

flutter emulators --launch <emulator id> //in my case, the id of the newly created emulator was "flutter_emulator"

有关更多信息，请检查 https://developer.android.com/studio/run/managing-avds https://developer.android.com/studio/command-line/avdmanager

Answer 2

尝试此操作以启动模拟器，然后您将连接到设备。一旦运行了模拟器，请尝试运行flutter应用程序。现在您没有任何模拟器在运行，为什么它告诉您没有已连接的设备...

flutter emulators --launch Nexus_6P

Answer 3

如果你想通过 flutter 在你的连接设备上运行应用程序，那么首先通过输入获取设备名称或 ID flutter devices 它会给你信息

并通过运行此命令运行应用程序