Xamarin Studio Android - 无法使用最新和最好的平台创建HelloWorld

Question

我创建了一个新项目,选择了"Android App","Latest and Greatest"和主题"Material".此外,我正在安装Google Play服务.

在此之后,我尝试运行默认创建的应用程序,并获得以下错误(在我的手机和genymotion模拟器上).

[art] Late-enabling -Xcheck:jni
[AndroidRuntime] Shutting down VM
[AndroidRuntime] FATAL EXCEPTION: main
[AndroidRuntime] Process: Memetizame.Memetizame, PID: 5804
[AndroidRuntime] java.lang.RuntimeException: Unable to get provider mono.MonoRuntimeProvider: java.lang.RuntimeException: Unable to find application Mono.Android.Platform.ApiLevel_22 or Xamarin.Android.Platform!
[AndroidRuntime]    at android.app.ActivityThread.installProvider(ActivityThread.java:4967)
[AndroidRuntime]    at android.app.ActivityThread.installContentProviders(ActivityThread.java:4559)
[AndroidRuntime]    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4499)
[AndroidRuntime]    at android.app.ActivityThread.access$1500(ActivityThread.java:144)
[AndroidRuntime]    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1339)
[AndroidRuntime]    at android.os.Handler.dispatchMessage(Handler.java:102)
[AndroidRuntime]    at android.os.Looper.loop(Looper.java:135)
[AndroidRuntime]    at android.app.ActivityThread.main(ActivityThread.java:5221)
[AndroidRuntime]    at java.lang.reflect.Method.invoke(Native Method)
[AndroidRuntime]    at java.lang.reflect.Method.invoke(Method.java:372)
[AndroidRuntime]    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
[AndroidRuntime]    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
[AndroidRuntime] Caused by: java.lang.RuntimeException: Unable to find application Mono.Android.Platform.ApiLevel_22 or Xamarin.Android.Platform!
[AndroidRuntime]    at mono.MonoRuntimeProvider.attachInfo(MonoRuntimeProvider.java:38)
[AndroidRuntime]    at android.app.ActivityThread.installProvider(ActivityThread.java:4964)
[AndroidRuntime]    ... 11 more
[AndroidRuntime] Caused by: android.content.pm.PackageManager$NameNotFoundException: Xamarin.Android.Platform
[AndroidRuntime]    at android.app.ApplicationPackageManager.getApplicationInfo(ApplicationPackageManager.java:281)
[AndroidRuntime]    at mono.MonoRuntimeProvider.attachInfo(MonoRuntimeProvider.java:32)
[AndroidRuntime]    ... 12 more

Answer 1

您需要在"目标版本"中进行更改.(如果您使用的是Visual Studio,则还需要更改"编译版本".)

如果您在Xamarin Studio工作,请双击您的项目; 将打开"项目选项",然后单击"常规"并更改"目标版本"(从下拉列表中选择适当的版本).

对于Visual Studio:

1. 在"解决方案资源管理器"中,打开要更改的项目的快捷菜单,然后选择"属性".

2. 在属性窗口的左列中,选择"应用程序"选项卡.

3. 在"使用Android版编译"和"目标框架"列表中,选择所需的版本.

4. 在出现的验证对话框中,选择是按钮.

我希望这个解决方案能解决你的问题.