我在VS2015社区版中经常看到这个错误：
Process with an Id of -1 is not running.
使用带有框架net46的xunit和.NET Core项目运行测试用例。
在测试期间发生异常时，似乎某些进程未正确终止。
当它发生时，我倾向于找到一个名为dotnet的进程无法被杀死。
到目前为止，我发现的唯一解决方法是重新启动Visual Studio，这有点烦人。
有人可以建议如何解决这个问题吗？或者解释为什么会发生这种情况？
Visual Studio帮助中的更多详细信息：
Microsoft Visual Studio Community 2015
Version 14.0.25425.01 Update 3
Microsoft.NET Framework
Version 4.6.01038
Installed Version: Community
Visual Basic 2015 00322-20000-00000-AA567
Microsoft Visual Basic 2015
Visual C# 2015 00322-20000-00000-AA567
Microsoft Visual C# 2015
Visual C++ 2015 00322-20000-00000-AA567
Microsoft Visual C++ 2015
Application Insights Tools for Visual Studio Package 7.5.00830.1
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 2015.1 14.1.20624.0
ASP.NET and Web Tools 2015.1
ASP.NET Web Frameworks and Tools 2012.2 4.1.41102.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563
ASP.NET Web Frameworks and Tools 2013 5.2.40314.0
For additional information, visit http://www.asp.net/
Azure App Service Tools v2.9 14.0.20316.0
Azure App Service Tools v2.9
Azure Data Lake Node 1.0
This package contains the Data Lake integration nodes for Server Explorer.
Azure Data Lake Tools for Visual Studio 2.0.6000.0
Microsoft Azure Data Lake Tools for Visual Studio
Common Azure Tools 1.8
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
JavaScript Language Service 2.0
JavaScript Language Service
JavaScript Project System 2.0
JavaScript Project System
JetBrains ReSharper Ultimate 2016.2 Build 106.0.20160818.163633
JetBrains ReSharper Ultimate package for Microsoft Visual Studio.For more information about ReSharper Ultimate, visit http://www.jetbrains.com/resharper. Copyright © 2016 JetBrains, Inc.
Microsoft.NET Core Tools (Preview 2) 14.1.20624.0
Microsoft.NET Core Tools(Preview 2)
Microsoft Azure HDInsight HQL Service 2.0.6000.0
Language service for Hive query
Microsoft Azure HDInsight Tools for Visual Studio 2.0.6000.0
An integrated development environment for HDInsight application development.
Microsoft Azure Mobile Services Tools 1.4
Microsoft Azure Mobile Services Tools
Microsoft Azure Tools 2.9
Microsoft Azure Tools for Microsoft Visual Studio 2015 - v2.9.40323.3
NuGet Package Manager 3.5.0
NuGet Package Manager in Visual Studio.For more information about NuGet, visit http://docs.nuget.org/.
PreEmptive Analytics Visualizer 1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.
SQL Server Data Tools 14.0.60519.0
Microsoft SQL Server Data Tools
TestDriven.Net 3
TestDriven.Net
ToolWindowHostedEditor 1.0
Hosting json editor into a tool window
TypeScript 1.8.36.0
TypeScript tools for Visual Studio