Question

重现：

在Visual Studio 2017中，xUnit测试项目：

右键单击Project，选择Add - ＆gt;新项目...选择＆＃39;在线＆＃39;

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：

此answer中的解决方案（类似消息，原因不同）：

Clearing NuGet cache, restarting

我无法在任何地方找到有关此特定症状的信息。我对VS和一般的.NET都很新，因此日志中可能会有一些我不理解的有用信息。

Answer 1

我遇到了同样的问题。不幸的是，这似乎是微软必须解决的问题。在以下网址中，它表示已解决该问题，并将在下次更新中包含此修复程序：https://developercommunity.visualstudio.com/content/problem/192168/add-new-file-online-template-basename-empty-string.html

目前Patrick提到的解决方法，从另一个项目中添加，将是您最好的选择。

检索Visual Studio 2017在线项目模板失败，其中包含＆＃34;＆＃39; baseName＆＃39;不能是空字符串（＆＃34;＆＃34;）或以空字符开头＆＃34;

1 个答案: