【发布时间】：2017-05-19 13:59:19
【问题描述】：
我正在尝试在 Xamarin Visual Studio 中创建一个新应用。我已经安装了 Visual Studio 2017 和更高版本的 Xamarin 包。现在，在创建跨平台应用程序时，我得到了三个以下弹出错误消息
第一个
The 'XamarinShellPackage' package did not load correctly.The problem may have been caused by a configuration change or by the installation of another extension. You can get more information by examining the file 'C:\Users\TestNameHere\AppData\TestName\Microsoft\VisualStudio\15.0_5c236eb4\ActivityLog.xml'.
Restarting Visual Studio could help resolve this issue
.
第二
A problem was encountered creating the sub project 'App4.Droid'. Object reference not set to an instance of an object.
最后一个
A problem was encountered creating the sub project 'App4.iOS'. The project file 'c:\users\nic\documents\visual studio 2017\Projects\App4\App4.iOS\App4.iOS.csproj' cannot be opened.
There is a missing project subtype.
Subtype: '{FEACFBD2-3405-455C-9665-78FE426C6842}' is unsupported by this installation.
谁能建议我在安装过程中做错了什么？
【问题讨论】：
-
你安装了android和iOS的SDK吗？
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是的，我已经安装了 Android SDK。