在Xamarin中找不到Android SDK

我是C#和Xamarin的初学者

我已经安装了VisualStudio和Xamarin，但是当我尝试使用Xamarin创建新项目时，在输出窗口中会显示以下错误

[I:sdk]: Looking for Android SDK..
[I:sdk]: Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory not found.
[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 does not contain adb.exe in \platform-tools (C:\Program Files (x86)\Android\android-sdk).
[I:sdk]: Looking for Android NDK..
[I:sdk]: Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:sdk]: Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:sdk]: Key HKCU\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]: Key HKLM\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]: Looking for Java 6 SDK..
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\CurrentVersion found.
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.6\JavaHome not found.
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.7\JavaHome found:
         Path contains jarsigner.exe in \bin (C:\Program Files (x86)\Java\jdk1.7.0_55).
[I:Unknown]: Did not find Android SDK
[I:sdk]: Looking for Android SDK..
[I:sdk]: Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory not found.
[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 does not contain adb.exe in \platform-tools (C:\Program Files (x86)\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:\ProgramData\Microsoft\AndroidNDK\android-ndk-r10e\).
[I:sdk]: Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:sdk]: Key HKCU\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]: Key HKLM\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]: Looking for Java 6 SDK..
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\CurrentVersion found.
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.6\JavaHome not found.
[I:sdk]: Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.7\JavaHome found:
         Path contains jarsigner.exe in \bin (C:\Program Files (x86)\Java\jdk1.7.0_55).
[I:Unknown]: Did not find Android SDK
[I:Unknown]: Found Xamarin.Android 6.0.3

---

但是我在

C:\ProgramFiles（x86）

和

C:\Users\sony\AppData\Local

下找不到Android文件夹，如果您确定没有安装Android SDK，您必须下载Android SDK并进行初始安装。以下是Android SDK windows安装程序的详细信息

安装Android SDK后，需要将Visual Studio指向SDK文件夹。单击顶部工具栏中的“工具”，然后单击“选项”。如果未自动检测到Android SDK位置，请单击“更改”并选择位置

之后，您可能需要重新启动Visual Studio

---

如果未安装Android SDK，则需要先安装它，然后相应地设置环境变量。您使用的是Visual Studio还是Xamarin Studio？@sheeraj Visual studiosir感谢您的快速回复。但是如何检查Android SDK安装与否？我在C:\Program Files（x86）和C:\Users\sony\AppData\Local下找不到Android文件夹。但是，当我打开（控制面板->visual sudio 2015->修改）>时，我发现android sdk已经存在了installed@vbvs在windows搜索栏中搜索“Android”。如果Android SDK安装在系统中的某个位置，它将出现在搜索结果中。若您找到了SDK，那个么只需转到第二步。否则，您需要下载并安装