Hexadecimal value 0x00, is an invalid character

I can’t open my file suddenly. Can someone assist me ?

Error: System.Xml.XmlException: ‘.’, hexadecimal value 0x00, is an invalid character. Line 718, position 12.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String args)
at System.Xml.XmlTextReaderImpl.ThrowInvalidChar(Char data, Int32 length, Int32 invCharPos)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r)
at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r, LoadOptions o)
at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XDocument.Load(String uri, LoadOptions options)
at UiPath.Studio.Plugin.Workflow.Document.XamlDocumentReader.ReadAsync(String path)
at UiPath.Studio.Core.Services.PersistableServiceBase3.GetFactoryByPath(String path) at UiPath.Studio.Core.Services.PersistableServiceBase3.ResolveFactory(OpenInformation openInfo)
at UiPath.Studio.Core.Services.PersistableServiceBase3.OpenAsync(OpenInformation openInfo) at UiPath.Studio.App.Desktop.ProjectItems.Behaviors.FileProjectItemBehavior.ExecuteOpenAsync(IFileSystemProjectItemViewModel item) at UiPath.Studio.App.Desktop.MVVM.Commands.TaskCommand3.Execute(TExecuteParameter parameter, Boolean ignoreCanExecuteCheck)
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
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), HResult -2146232000


I think the xaml file might be corrupted. For now, can you try to open the xaml file with text editor and check around Line 718 position 12?



line 718 is actually the last line and position 12 is the end position, But I don’t know what is the problem


If possible, can you share the xaml file?


its okay, already solved, I just change the file path. thank you so much for assisting


Hi @adamtan831

Could you please elaborate on this solution a bit? :slight_smile: