StartPage+ doesn't open at startup

[MagicAndre1981]

Installed product versions

• Visual Studio: 2019 16.3
• This extension: 0.12.1

Description

StartPage+ doesn't open at startup and crashes VS2019 when manually running it (but when I run devenv.exe inside Windbg, the page shows up).

Steps to recreate

1. Install VS2019 16.3
2. Install StartPage+
3. restart

Current behavior

only empty environment hows up, clicking on "View"->"Start Page+" causes VS to crash

Expected behavior

Start Page+ hows up fine after start.

[MagicAndre1981]

now it gets wired. After I was only able to use Start Page+ when VS2019 was launched in Windbg, I can now run it fine without windbg 🤔 🤷‍♂️

[yannduran]

Maybe your version was automatically updated to a later version. The current version is v0.12.1.4 - there is still an issue of the window not opening if you close it that I haven't had time to find out why yet.

Start Page+ should never have crashed VS though. I use it myself and that's never happened to me. Maybe there was something else affecting your VS Preview version. Who knows lol. I'm glad it's working for you now.

Can I close this issue now?

[MagicAndre1981]

this was a complete fresh VS2019 16.3 final install without any 3rd party addons. I also disabled automatic VS update and extension update installation and installed StartPage+ from extension UI.

Eventlog shows NullreferenceException while loading Recent Items:

Application: devenv.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
   at StartPagePlus.UI.Services.RecentItemDataService.GetItems()
   at StartPagePlus.UI.ViewModels.RecentItemsViewModel.ExecuteRefresh()
   at StartPagePlus.UI.Views.RecentItemsView..ctor()

Exception Info: System.Reflection.TargetInvocationException
   at System.RuntimeTypeHandle.CreateInstance(System.RuntimeType, Boolean, Boolean, Boolean ByRef, System.RuntimeMethodHandleInternal ByRef, Boolean ByRef)
   at System.RuntimeType.CreateInstanceSlow(Boolean, Boolean, Boolean, System.Threading.StackCrawlMark ByRef)
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean, Boolean, Boolean, System.Threading.StackCrawlMark ByRef)
   at System.Activator.CreateInstance(System.Type, Boolean)
   at System.RuntimeType.CreateInstanceImpl(System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo, System.Object[], System.Threading.StackCrawlMark ByRef)
   at System.Activator.CreateInstance(System.Type, System.Reflection.BindingFlags, System.Reflection.Binder, System.Object[], System.Globalization.CultureInfo, System.Object[])
   at System.Activator.CreateInstance(System.Type, System.Object[])
   at System.Xaml.Schema.SafeReflectionInvoker.CreateInstanceCritical(System.Type, System.Object[])
   at System.Xaml.Schema.SafeReflectionInvoker.CreateInstance(System.Type, System.Object[])
   at System.Xaml.Schema.XamlTypeInvoker.CreateInstance(System.Object[])
   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstanceWithCtor(System.Xaml.XamlType, System.Object[])
   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CreateInstance(System.Xaml.XamlType, System.Object[])
   at System.Xaml.XamlObjectWriter.Logic_CreateAndAssignToParentStart(MS.Internal.Xaml.Context.ObjectWriterContext)
   at System.Xaml.XamlObjectWriter.WriteEndObject()
   at System.Xaml.XamlWriter.WriteNode(System.Xaml.XamlReader)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(System.Xaml.XamlReader, System.Xaml.XamlObjectWriter)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(System.Xaml.XamlObjectWriter)
   at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(System.Windows.DependencyObject, System.Windows.Markup.IComponentConnector, System.Windows.Markup.IStyleConnector, System.Collections.Generic.List`1<System.Windows.DependencyObject>, System.Windows.UncommonField`1<System.Collections.Hashtable>)
   at System.Windows.FrameworkTemplate.LoadContent(System.Windows.DependencyObject, System.Collections.Generic.List`1<System.Windows.DependencyObject>)
   at System.Windows.StyleHelper.ApplyTemplateContent(System.Windows.UncommonField`1<System.Collections.Specialized.HybridDictionary[]>, System.Windows.DependencyObject, System.Windows.FrameworkElementFactory, Int32, System.Collections.Specialized.HybridDictionary, System.Windows.FrameworkTemplate)
   at System.Windows.FrameworkTemplate.ApplyTemplateContent(System.Windows.UncommonField`1<System.Collections.Specialized.HybridDictionary[]>, System.Windows.FrameworkElement)
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.Controls.Primitives.UniformGrid.MeasureOverride(System.Windows.Size)
   at System.Windows.FrameworkElement.MeasureCore(System.Windows.Size)
   at System.Windows.UIElement.Measure(System.Windows.Size)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(System.Object)
   at System.Windows.Media.MediaContext+InvokeOnRenderCallback.DoWork()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(System.Object)
   at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(System.Object)
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)

[MagicAndre1981]

• there is still an issue of the window not opening if you close it that I haven't had time to find out why yet.

this works fine for me in this fresh 16.3 install. I can close StartPage+ and reopen it when I want it. No issue for me.

[yannduran]

Thanks for that followup André.

StartPagePlus.UI.Services.RecentItemDataService.GetItems() shows me where the problem you had is. It's possible that this method fails for some reason (and of course it shouldn't FAIL, I thought I had a try/catch around it - I'll look into that). It's possible that an exception could be thrown in a band new install when there aren't any recent items yet, I hadn't thought of that - I'll look into that as well.

Thanks for also letting me know that you can close and open Start Page+ without a problem, I stopped trying because it was a pain to have to restart VS to be able to get it back again. I'd certainly like to be able to cross that one off the list, though to be honest I couldn't figure out why it was doing it in the first place, which is why I put it off until later.

[MagicAndre1981]

StartPagePlus.UI.Services.RecentItemDataService.GetItems() shows me where the problem you had is. It's possible that this method fails for some reason (and of course it shouldn't FAIL, I thought I had a try/catch around it - I'll look into that). It's possible that an exception could be thrown in a band new install when there aren't any recent items yet, I hadn't thought of that - I'll look into that as well.

it was wired because I got a messagebox but only strange error code and after clicking ok, VS crashed.

But now it works. Maybe OpenSubKey failed which is not wrapped around try/catch

[MagicAndre1981]

ok, someone already made a PR for the NullRefException issue

[sevanko90]

That was me. Yes it only happened on a new VS preview install that had never been run before, with no recent items. I was actually trying to find some better colours, the exception fix was just something I had to get past first!

[yannduran]

Thank Marc for that! I'll try to get that into Preview 2.