Flutter Run 命令不起作用 - 如何修复以下错误？

Question

'flutter run' 命令正在崩溃。突然间它开始抛出以下错误。

flutter run
Using hardware rendering with device Android SDK built for x86. If you get graphics artifacts, consider enabling software
rendering with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...                                              1.8s
Resolving dependencies...                                           9.3s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                         8.2s
Built build\app\outputs\apk\debug\app-debug.apk.
cmd: Can't find service: activity
Installing build\app\outputs\apk\app.apk...                         0.5s
Error: ADB exited with exit code 1
Performing Streamed Install

adb: failed to install C:\www\flutter\helloworld\build\app\outputs\apk\app.apk: cmd: Can't find service: package
Error launching application on Android SDK built for x86.

我尝试运行“颤振医生”，但没有发现任何问题。

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, v1.5.4-hotfix.2, on Microsoft Windows [Version 10.0.17763.557], locale en-US)

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.0)
[√] Android Studio (version 3.4)
[√] VS Code (version 1.35.1)
[√] Connected device (1 available)

• No issues found!

Answer 1

我在使用真实设备进行测试时遇到了同样的问题。有一个设置允许通过 USB 安装 aps，我必须手动启用它。这解决了我的问题

Answer 2

我也遇到过类似的问题，但我认为这是某种 AVD 问题。我在创建新设备时解决了它，但是有很多 OSX（我仍然想知道这怎么可能）崩溃，直到我偶然发现正确的设备，这就是为什么我认为硬件和它的设备之间存在某种不兼容的原因试图效仿。 tl;dr 尝试用另一个虚拟设备更改虚拟设备。

Answer 3

您是否尝试在模拟器上运行该应用程序？如果是，请尝试在真实设备上运行。或尝试擦除或重新创建模拟器。这可能会有所帮助。