Error deploying Xamarin to Android

问题

I am getting started with Xamarin and am trying to run the example project. I've managed to install the Android SDK and have created a virtual device to test with. However, when I try to run the project, I get a non-descriptive error that indicates that I should check the log file. When I do, I find the following two stack traces:

System.InvalidOperationException at Xamarin.VisualStudio.Android.AndroidVirtualDeviceProvider.StartEmulator(IAndroidVirtualDevice virtualDevice, IProgressReport progress, CancellationToken cancellationToken) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio.Android\Devices\AndroidVirtualDeviceProvider.cs:line 148 at Xamarin.VisualStudio.Android.CommandHandlers.StartupVirtualDeviceCommandHandler.StartUp(IMonoAndroidDevice device, IProgressReport progress, IAndroidVirtualDeviceProvider virtualDeviceProvider, CancellationToken cancellationToken) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio.Android\CommandHandlers\StartupVirtualDeviceCommandHandler.cs:line 0 at Xamarin.VisualStudio.Android.CommandHandlers.StartupVirtualDeviceCommandHandler.Execute(StartupVirtualDeviceCommand command, IProgressReport progress, CancellationToken cancellationToken) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio.Android\CommandHandlers\StartupVirtualDeviceCommandHandler.cs:line 45 at Xamarin.VisualStudio.Commands.CommandHandlerBase2.Execute(TCommand command, CancellationToken cancellationToken) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio\Commands\CommandHandlerBase.cs:line 125 at Xamarin.VisualStudio.Commands.CommandHandlerBase2.<>c__DisplayClass1_0.<ExecuteAsync>b__0() in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio\Commands\CommandHandlerBase.cs:line 118 at System.Threading.Tasks.Task1.InnerInvoke() at System.Threading.Tasks.Task.Execute() System.InvalidOperationException at Xamarin.VisualStudio.Commands.CommandHandlerBase.ProcessAggregateInnerException(Exception innerException, IProgressReport progress) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio\Commands\CommandHandlerBase.cs:line 37 at Xamarin.VisualStudio.Commands.CommandHandlerBase2.Execute(TCommand command, CancellationToken cancellationToken) in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio\Commands\CommandHandlerBase.cs:line 145 at Xamarin.VisualStudio.Commands.CommandHandlerBase2.<>c__DisplayClass1_0.<ExecuteAsync>b__0() in C:\Users\builder\data\lanes\3345\2e397405\source\XamarinVS\src\Core\VisualStudio\Commands\CommandHandlerBase.cs:line 118 at System.Threading.Tasks.Task1.InnerInvoke() at System.Threading.Tasks.Task.Execute()

Does anyone have any clue what is going on?

回答1:

It turns out the issue was that my computer didn't have hardware virtualization turned on. I never found any kind of output that told me so, but when I turned it on it started to work.

回答2:

It looks like you've got issues using the built-in emulator. I'd recommand you to try debugging with a real device or using Genymotion to create emulators. It requires Virtual Box to run, but is really useful, as there is a lot of devices that can be simulated, so you can test your apps on several APIs and screen sizes.

来源：https://stackoverflow.com/questions/37967227/error-deploying-xamarin-to-android