Xamarin无法通过以下方式将应用程序部署到仿真器：“意外的安装输出：cmd：找不到服务：程序包”

Question

我正在使用Visual Studio 2019 构建示例介绍xamarin表单应用程序，并且模拟器启动，但该应用程序未部署，并显示错误意外安装输出：cmd：找不到服务：程序包“：

1>No way to resolve conflict between "mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and "mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e". Choosing "mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" arbitrarily.
1>C:\Program Files\Android\jdk\microsoft_dist_openjdk_1.8.0.9\bin\keytool.exe -list -alias androiddebugkey -storepass android -keypass android -keystore "C:\Users\sticker592\AppData\Local\Xamarin\Mono for Android\debug.keystore" 
1>C:\Program Files (x86)\Android\android-sdk\build-tools\25.0.3\zipalign.exe -p 4 "C:\Users\sticker592\Downloads\FirstApp\AwesomeApp\AwesomeApp.Android\obj\Debug\81\android\bin\com.companyname.AwesomeApp.apk" "bin\Debug\\com.companyname.AwesomeApp-Signed.apk" 
1>C:\Program Files\Android\jdk\microsoft_dist_openjdk_1.8.0.9\bin\java.exe -jar "C:\Program Files (x86)\Android\android-sdk\build-tools\25.0.3\lib\apksigner.jar" sign --ks "C:\Users\sticker592\AppData\Local\Xamarin\Mono for Android\debug.keystore" --ks-pass pass:android --ks-key-alias androiddebugkey --key-pass pass:android --min-sdk-version 21 --max-sdk-version 27  C:\Users\sticker592\Downloads\FirstApp\AwesomeApp\AwesomeApp.Android\bin\Debug\com.companyname.AwesomeApp-Signed.apk 
1>ADB0000:  Deployment failed
1>Mono.AndroidTools.InstallFailedException: Unexpected install output: cmd: Can't find service: package
1>
1>   at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName) in E:\A\_work\413\s\External\androidtools\Mono.AndroidTools\Internal\AdbOutputParsing.cs:line 345
1>   at Mono.AndroidTools.AndroidDevice.<>c__DisplayClass95_0.<InstallPackage>b__0(Task`1 t) in E:\A\_work\413\s\External\androidtools\Mono.AndroidTools\AndroidDevice.cs:line 753
1>   at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
1>   at System.Threading.Tasks.Task.Execute()
1>ADB0010: Unexpected install output: cmd: Can't find service: package
1>
1>   at Mono.AndroidTools.Internal.AdbOutputParsing.CheckInstallSuccess(String output, String packageName) in E:\A\_work\413\s\External\androidtools\Mono.AndroidTools\Internal\AdbOutputParsing.cs:line 345
1>   at Mono.AndroidTools.AndroidDevice.<>c__DisplayClass95_0.<InstallPackage>b__0(Task`1 t) in E:\A\_work\413\s\External\androidtools\Mono.AndroidTools\AndroidDevice.cs:line 753
1>   at System.Threading.Tasks.ContinuationTaskFromResultTask`1.InnerInvoke()
1>   at System.Threading.Tasks.Task.Execute()
1>Done building project "AwesomeApp.Android.csproj" -- FAILED.
1>Build FAILED.

Answer 1

就我而言，它有助于在Android设备管理器中对仿真设备进行恢复出厂设置。

Answer 2

我面临的许多问题的解决方案：

如user5389726598465所述，“从Android 9.0仿真器切换到Android 8 Oreo映像”使Visual Studio卸载Mono共享运行时并安装新的运行时。好像是单声道修复。

这是Visual Studio中的步骤：

1-创建一个项目/解决方案。

2-转到“工具”>“ Android”>“ Android SDK Manager”。

3-安装所需的Android及其所有组件。例如Android 8 Oreo。（等待安装完成！）

注意：如果您像我一样使用Visual Studio 2019，则必须使用Android 8.1 Oreo或更高版本。

现在，您可以卸载旧的-可选。

4-转到工具> Android> Android设备管理器。

5- Create a new device/Emulator with exactly the same OS and API version which you chose in step 1. (Do NOT go with x86_64 Processor to avoid random errors)

6- Under Solution right-click on myApp.Android project > Properties > Application > set Compile using Android version: (Target Framework) TO select your matching Android version .

7- Android device manager > Run. (Wait for Android Emulator to completely boot up.)

8- Clean then Build your solution.

9- Run the solution and wait. (This step might take more than 20 minutes for the first time with no visualizing process. Leave the computer, be patient and don't break the program until you see your output on the Emulator screen!)

Well done!

Answer 3

作为一种解决方法，从 Android 9.0 模拟器切换到 Android 8 Oreo 映像解决了该问题。