在设备“等待应用程序启动超时”上启动Flutter应用程序时出现问题
[英]Problem launching Flutter application on device “timeout waiting for the application to start”
问题描述
After some time mine Flutter application stopped building on a device. 
一段时间后，我的Flutter应用程序停止在设备上构建。 I tried flutter clean , Invalidate Caches and Restart in Android Studio, restarting device and Android Studio, nothing helps :(. The application still builds ok on the emulator though. 我尝试在Android Studio中进行flutter clean ，Invalidate Caches和Restart，重新启动设备和Android Studio，但无济于事:(。该应用程序仍然可以在模拟器上正常构建。
the Run log: 运行日志：
Launching lib/main.dart on Mi A1 in debug mode...
Initializing gradle...
Resolving dependencies...
Gradle task 'assembleDebug'...
Built build/app/outputs/apk/debug/app-debug.apk.
Installing build/app/outputs/apk/app.apk...
timeout waiting for the application to start
4 个解决方案
解决方案1
1 已采纳 2018-10-13 17:58:44
Found the problem. 找到了问题。 Application was installed for other users on my phone, after I uninstalled it for all users the problem disappeared. 我为所有用户卸载了其他用户的应用程序后，问题消失了。
解决方案2
1 2018-11-03 22:10:17
If you are using android studio, a simple Invalidate Caches / Restart... would do. 如果您使用的是Android Studio，则可以执行简单的Invalidate Caches / Restart...。 I tried it and it work. 我试过了，它起作用了。
Go to File > Invalidate Caches / Restart... 转到文件>使缓存无效/重新启动...
解决方案3
0 2018-10-15 07:43:42
单击pubspec.yaml并单击包获取...它解决了我的问题
解决方案4
0 2018-11-05 09:26:06
Simply wait for a while instead of cancelling multiple times. 只需等待一段时间，而不是取消多次。 It solved the issue. 它解决了问题。
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