win11 update

Question

my system is win11, and i use the markdownpad2 app ,and recently ,win11 system updated ,and

the markdownpad2 app can't open ,and the error is like below:

Exception Information:

System.Windows.Markup.XamlParseException: The invocation of the constructor on type 'MarkdownPad2.UserControls.MarkdownEditor' that matches the specified binding constraints threw an exception. ---> System.InvalidCastException: Specified cast is not valid.

at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo)

at Microsoft.ClearScript.Util.RawCOMHelpers.QueryInterfaceT

at Microsoft.ClearScript.Windows.ActiveScriptWrapper32..ctor(String progID, WindowsScriptEngineFlags flags)

at Microsoft.ClearScript.Windows.ActiveScriptWrapper.Create(String progID, WindowsScriptEngineFlags flags)

at Microsoft.ClearScript.Windows.WindowsScriptEngine.<>c__DisplayClass2.<.ctor>b__0()

at Microsoft.ClearScript.ScriptEngine.ScriptInvokeT

at Microsoft.ClearScript.Windows.WindowsScriptEngine..ctor(String progID, String name, WindowsScriptEngineFlags flags)

at Microsoft.ClearScript.Windows.JScriptEngine..ctor(String progID, String name, WindowsScriptEngineFlags flags)

at Microsoft.ClearScript.Windows.JScriptEngine..ctor(String name, WindowsScriptEngineFlags flags)

at MarkdownPad2.Markdown.GitHubFlavoredMarkdownOffline..ctor()

at MarkdownPad2.Markdown.MarkdownProcessorProvider.get_MarkdownProcessorMap()

at MarkdownPad2.UserControls.MarkdownEditor.SetMarkdownProcessor(MarkdownProcessorType processor)

at MarkdownPad2.UserControls.MarkdownEditor.LoadEditorSettings()

at MarkdownPad2.UserControls.MarkdownEditor..ctor()

--- End of inner exception stack trace ---

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.LoadBamlStreamWithSyncInfo(Stream stream, ParserContext pc)

at System.Windows.Application.LoadComponent(Uri resourceLocator, Boolean bSkipJournaledProperties)

at System.Windows.Application.DoStartup()

at System.Windows.Application.<.ctor>b__1_0(Object unused)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

---

I wanner know whethere the problem is occured by the win11 update?

thanks for your reply

Answer 1

After a fair bit of testing, can confirm that this issue can be replicated by applying Windows Update 24h2

Any machine which has not had 24h2 applied, MarkdownPad2 seems fine, as soon as 24h2 is applied, this error occurs on trying to launch.