Xamrain Visual Studio 2017中的表单生成任务参考错误 [英] Xamrain form build task reference error in visual studio 2017

问题描述

我正在使用Visual Studio 2017，当我从内部版本3.0安装xamrain时，出现以下错误提示正在运行的应用程序.如何解决这个问题?

I am using visual studio 2017 and when I install xamrain from build 3.0 then I get the error bellow running application. How to resolve this problem?

严重性代码描述项目文件行抑制状态 错误无法执行"Xamarin.Forms.Build.Tasks.GetTasksAbi"任务 从程序集加载 D:\ Practics \ AndroidApp \ packages \ Xamarin.Forms.3.0.0.561731 \ build \ netstandard2.0 \ Xamarin.Forms.Build.Tasks.dll. 无法加载文件或程序集'netstandard，版本= 2.0.0.0， 文化=中性，PublicKeyToken = cc7b13ffcd2ddd51'或其中之一 依赖关系.该系统找不到指定的文件.确认它 该声明是正确的，该程序集及其所有 依赖项可用，并且该任务包含一个公共类 实现 Microsoft.Build.Framework.ITask. AndroidApp.Android D:\ Practics \ AndroidApp \ packages \ Xamarin.Forms.3.0.0.561731 \ build \ netstandard2.0 \ Xamarin.Forms.targets 36
严重性代码说明项目文件行抑制状态错误不能执行"Xamarin.Forms.Build.Tasks.GetTasksAbi"任务 从程序集加载 D:\ Practics \ AndroidApp \ packages \ Xamarin.Forms.3.0.0.561731 \ build \ netstandard1.0 \ Xamarin.Forms.Build.Tasks.dll. 无法加载文件或程序集'netstandard，版本= 2.0.0.0， 文化=中性，PublicKeyToken = cc7b13ffcd2ddd51'或其中之一 依赖关系.该系统找不到指定的文件.确认它 该声明是正确的，该程序集及其所有 依赖项可用，并且该任务包含一个公共类 实现 Microsoft.Build.Framework.ITask. AndroidApp D:\ Practics \ AndroidApp \ packages \ Xamarin.Forms.3.0.0.561731 \ build \ netstandard1.0 \ Xamarin.Forms.targets 36

Severity Code Description Project File Line Suppression State Error The "Xamarin.Forms.Build.Tasks.GetTasksAbi" task could not be loaded from the assembly D:\Practics\AndroidApp\packages\Xamarin.Forms.3.0.0.561731\build\netstandard2.0\Xamarin.Forms.Build.Tasks.dll. Could not load file or assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. AndroidApp.Android D:\Practics\AndroidApp\packages\Xamarin.Forms.3.0.0.561731\build\netstandard2.0\Xamarin.Forms.targets 36
Severity Code Description Project File Line Suppression State Error The "Xamarin.Forms.Build.Tasks.GetTasksAbi" task could not be loaded from the assembly D:\Practics\AndroidApp\packages\Xamarin.Forms.3.0.0.561731\build\netstandard1.0\Xamarin.Forms.Build.Tasks.dll. Could not load file or assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. AndroidApp D:\Practics\AndroidApp\packages\Xamarin.Forms.3.0.0.561731\build\netstandard1.0\Xamarin.Forms.targets 36

推荐答案

好，这是Visual Studio 2017的xamarin-forms v 3.0已知问题.上周我也遇到了同样的问题(参考:

Well, This is xamarin-forms v 3.0 known issue with visual studio 2017. I faced same issue on last week (ref : https://bugzilla.xamarin.com/show_bug.cgi?id=60293).

修复:安装.NET Framework 4.7.1.来自Microsoft( https://www.microsoft.com/en -us/download/details.aspx?id = 56116 )，然后重新启动系统.

Fix : Install .NET framework 4.7.1. from Microsoft(https://www.microsoft.com/en-us/download/details.aspx?id=56116) and then restart your system.

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