检索 Visual Studio 2017 联机项模板失败，并显示"'baseName' cannot be an empty string (" ") or start with null ch

Question

再现：

在Visual Studio 2017中，Xunit测试项目：

右键单击项目，选择add->新项目...选择'Online''

错误对话框：

Retrieving Visual Studio 2017 online item templates fails with "'baseName' cannot be an empty string ("") or start with null character"

参数名称：basename

Log:
=====================
08/02/2018 10:36:14
Recoverable
System.ArgumentException: 'baseName' cannot be an empty string ("") or start with the null character.
Parameter name: baseName
   at Microsoft.Requires.NotNullOrEmpty(String value, String parameterName)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.SimpleHierarchyNode.<GenerateUniqueItemNameAsync>d__80.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.<>c__DisplayClass460_0.<<GenerateUniqueItemName>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask.CompleteOnCurrentThread()
   at Microsoft.VisualStudio.ProjectSystem.ProjectMultiThreadedService.ExecuteSynchronously(Func`1 asyncAction)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.<>c__DisplayClass548_0.<HrInvoke>b__0()
   at Microsoft.VisualStudio.ProjectSystem.VS.HResult.<>c__DisplayClass36_0.<Invoke>b__0()
   at Microsoft.VisualStudio.ProjectSystem.VS.HResult.Invoke(Func`1 action, IServiceProvider vsShellServiceProvider, IProjectFaultHandlerService projectFaultHandlerService, UnconfiguredProject project)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.VisualStudio.ProjectSystem.CommonProjectSystemTools.Rethrow(Exception ex)
   at Microsoft.VisualStudio.ProjectSystem.ProjectErrorReporting.<>c__DisplayClass6_0.<SubmitErrorReport>b__0()
   at Microsoft.VisualStudio.ProjectSystem.ExceptionFilter.<>c__DisplayClass2_0.<Guard>b__0()
   at GuardMethodClass.GuardMethod(Func`1 , Func`2 , Func`2 )
===================
08/02/2018 10:43:30
Recoverable
System.ArgumentException: 'baseName' cannot be an empty string ("") or start with the null character.
Parameter name: baseName
   at Microsoft.Requires.NotNullOrEmpty(String value, String parameterName)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.SimpleHierarchyNode.<GenerateUniqueItemNameAsync>d__80.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.<>c__DisplayClass460_0.<<GenerateUniqueItemName>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask.CompleteOnCurrentThread()
   at Microsoft.VisualStudio.ProjectSystem.ProjectMultiThreadedService.ExecuteSynchronously(Func`1 asyncAction)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.<>c__DisplayClass548_0.<HrInvoke>b__0()
   at Microsoft.VisualStudio.ProjectSystem.VS.HResult.<>c__DisplayClass36_0.<Invoke>b__0()
   at Microsoft.VisualStudio.ProjectSystem.VS.HResult.Invoke(Func`1 action, IServiceProvider vsShellServiceProvider, IProjectFaultHandlerService projectFaultHandlerService, UnconfiguredProject project)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.VisualStudio.ProjectSystem.CommonProjectSystemTools.Rethrow(Exception ex)
   at Microsoft.VisualStudio.ProjectSystem.ProjectErrorReporting.<>c__DisplayClass6_0.<SubmitErrorReport>b__0()
   at Microsoft.VisualStudio.ProjectSystem.ExceptionFilter.<>c__DisplayClass2_0.<Guard>b__0()
   at GuardMethodClass.GuardMethod(Func`1 , Func`2 , Func`2 )
===================

尝试：

解决方案中的解决方案(类似消息，不同原因(：

Clearing NuGet cache, restarting

我找不到有关此特定症状原因的信息。我是VS的新手，并且通常是.NET，因此日志中可能会有有用的信息。

Answer 1

我遇到了同一问题。不幸的是，这似乎是微软必须解决的问题。在下面的URL上，它说他们解决了它，并将在下一个更新中包括修复程序：https：//develovelercommunity.visualstudio.com/content/problem/192168/add-new-new-file-online-online-online-temline-template-template-basename-name-basename-empty--secty--empty--empty--empty--string.html

目前，帕特里克提到的解决方法是，从另一个项目中补充说，将是您最好的选择。