Task Runner Explorer non funzionante

Question

Ho applicato Gulp al mio progetto nella comunità VS2015. Ma quando utilizzo il Task Runner Explorer, appare una finestra di dialogo che dice "L'eccezione è stata lanciata dall'obiettivo di una chiamata." Ho provato a fare la cosa (PATH) in "Configura strumento Web esterno" ma non aiuto a tutti.

L'installazione di NPM funziona e Gulp sta funzionando correttamente.

Sto utilizzando le seguenti versioni

• .NET Framework 4.6.1
• Gulp v1.3.15
• npm v1.3.15
• Nodo v5.3.0

Inoltre, quando eseguo il progetto e apro Task Runner Explorer, ho questa eccezione qui sotto:

An exception was encountered while constructing the content of this frame. This information is also logged in "C:\Users\marvin\AppData\Roaming\Microsoft\VisualStudio\14.0\ActivityLog.xml". 
Exception details: 
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object. 
    at Microsoft.VisualStudio.TaskRunnerExplorer.TaskRunnerUserControl.InitializeControl(Object sender, EventArgs e) 
    at System.Windows.FrameworkElement.RaiseInitialized(EventPrivateKey key, EventArgs e) 
    at System.Windows.FrameworkElement.OnInitialized(EventArgs e) 
    at System.Windows.FrameworkElement.TryFireInitialized() 
    at System.Windows.FrameworkElement.EndInit() 
    at MS.Internal.Xaml.Runtime.ClrObjectRuntime.InitializationGuard(XamlType xamlType, Object obj, Boolean begin) 
    at MS.Internal.Xaml.Runtime.PartialTrustTolerantRuntime.InitializationGuard(XamlType xamlType, Object obj, Boolean begin) 
    at System.Xaml.XamlObjectWriter.Logic_EndInit(ObjectWriterContext ctx) 
    at System.Xaml.XamlObjectWriter.WriteEndObject() 
    at System.Xaml.XamlWriter.WriteNode(XamlReader reader) 
    at System.Windows.Markup.WpfXamlLoader.TransformNodes(XamlReader xamlReader, XamlObjectWriter xamlWriter, Boolean onlyLoadOneNode, Boolean skipJournaledProperties, Boolean shouldPassLineNumberInfo, IXamlLineInfo xamlLineInfo, IXamlLineInfoConsumer xamlLineInfoConsumer, XamlContextStack`1 stack, IStyleConnector styleConnector) 
    at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri) 
    at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri) 
    at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream) 
    at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator) 
    at Microsoft.VisualStudio.TaskRunnerExplorer.TaskRunnerUserControl.InitializeComponent() 
    at Microsoft.VisualStudio.TaskRunnerExplorer.TaskRunnerToolWindow..ctor() 
    --- End of inner exception stack trace --- 
    at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) 
    at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) 
    at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark) 
    at System.Activator.CreateInstance(Type type, Boolean nonPublic) 
    at System.Activator.CreateInstance(Type type) 
    at Microsoft.VisualStudio.Shell.Package.InstantiateToolWindow(Type toolWindowType) 
    at Microsoft.VisualStudio.Shell.Package.CreateToolWindow(Type toolWindowType, Int32 id, UInt32 flags) 
    at Microsoft.VisualStudio.Shell.Package.CreateToolWindow(Type toolWindowType, Int32 id, ProvideToolWindowAttribute tool) 
    at Microsoft.VisualStudio.Shell.Package.FindToolWindow(Type toolWindowType, Int32 id, Boolean create, ProvideToolWindowAttribute tool) 
    at Microsoft.VisualStudio.Shell.Package.CreateToolWindow(Guid& toolWindowType, Int32 id) 
    at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsToolWindowFactory.CreateToolWindow(Guid& toolWindowType, UInt32 id) 
    at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.ConstructContent() 

Answer 1

Ho avuto lo stesso errore e ho notato che la mia directory C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\Web Tools era vuota.

Riparato mediante la reinstallazione dell'estensione Microsoft ASP.NET and Web Tools.