XAMARIN Android构建解决方案但无法部署vs2013

Question

我刚刚编写了一个示例Xamarin Android应用程序，所有内容都正确构建：

1>------ Rebuild All started: Project: App7, Configuration: Debug Any CPU ------
1>    Processing: obj\Debug\res\layout\main.xml
1>    Processing: obj\Debug\res\values\strings.xml
1>C:\Users\mepapasymeon\Documents\Visual Studio 2013\Projects\App7\App7\MainActivity.cs(14,13,14,18): warning CS0414: The field 'Phoneword.MainActivity.count' is assigned but its value is never used
1>  App7 -> C:\Users\mepapasymeon\Documents\Visual Studio 2013\Projects\App7\App7\bin\Debug\App7.dll
1>    Processing: obj\Debug\res\layout\main.xml
1>    Processing: obj\Debug\res\values\strings.xml
1>    Processing: obj\Debug\res\layout\main.xml
1>    Processing: obj\Debug\res\values\strings.xml
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========
Build started.
Build succeeded.
Build started.
Build succeeded.

但是当我按下开始时

1>Please select a valid device before running the application.
1>------ Deploy started: Project: App7, Configuration: Debug Any CPU ------
1>Error: Cancelled
========== Deploy: 0 succeeded, 1 failed, 0 skipped ==========

这是Xamarin Diagnostics：

[I:sdk]:                  Looking for Android SDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory found:
    Path contains adb.exe in \platform-tools (C:\Users\Administrator\AppData\Local\Android\android-sdk).
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory found:
    Path does not contain adb.exe in \platform-tools (C:\android-sdk-windows).
[I:sdk]:                    Key HKCU\SOFTWARE\Xamarin\MonoAndroid\PrivateAndroidSdkPath not found.
[I:sdk]:                    Key HKCU\SOFTWARE\Android SDK Tools\Path not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Android SDK Tools\Path found:
    Path contains adb.exe in \platform-tools (C:\Users\Administrator\AppData\Local\Android\android-sdk).
[I:sdk]:                  Looking for Android NDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory found:
    Path contains ndk-stack.exe in \. (C:\Users\mepapasymeon\Documents\Android\ndk\android-ndk-r10e).
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:Unknown]:              Found Android SDK. API levels: 15, 19, 23
[I:Unknown]:              Found Xamarin.Android 6.0.3

Answer 1

错误：

  

1＆gt;请在运行应用程序之前选择有效的设备。

您必须安装并配置模拟器，然后选择与您所在的API级别（或更高级别）匹配的已配置模拟手机正在构建您的.apk以便＆＃34;部署＆＃34;它。或者使用已经开发人员模式的物理设备，并启用 USB调试并连接到Windows PC。

运行Visual Studio Android模拟器

https://developer.xamarin.com/guides/android/deployment,_testing,_and_metrics/debug-on-emulator/visual-studio-android-emulator/

Xamarin Android Player

https://developer.xamarin.com/guides/android/deployment,_testing,_and_metrics/debug-on-emulator/xamarin-android-player/

一旦Xamarin Android Player运行，启动Visual Studio并从工具栏启动Android ADB命令提示符：

在显示的命令提示符下，输入adb connect：

Answer 2

此问题已经回答here

你必须下载android虚拟设备。

这里有几个选项：

• Xamarin Android player
• Bluestacks
• Andy
• Genymotion

现在您拥有了虚拟设备。你需要在运行或调试之前启动一个。

您看到的具体错误是因为您在调试之前没有正确启动设备，您应该能够看到该设备。

现在运行该项目，您将不会遇到此错误。