Not able to start the new process/project using 2019.4.2 getting the error as could not be opened: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1

[Ramathilagam]

19.4.2+Branch.master.Sha.e17a3bedca2a7da0d0b716b5f8f765d1d5ef1ddc

The project ‘C:\Users\admin\Documents\UiPath\BlankProcess7\project.json’ could not be opened: ‘.’, hexadecimal value 0x00, is an invalid character. Line 1, position 1…

Cannot open item: UiPath.Studio.Contracts.RecoverableException: The project ‘C:\Users\admin\Documents\UiPath\BlankProcess7\project.json’ could not be opened: ‘.’, hexadecimal value 0x00, is an invalid character. Line 1, position 1… —> System.Xml.XmlException: ‘.’, hexadecimal value 0x00, is an invalid character. Line 1, position 1.
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.XmlTextReaderImpl.Read()
at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
at NuGet.Packaging.Core.NuspecCoreReaderBase.LoadXml(Stream stream, Boolean leaveStreamOpen)
at NuGet.Packaging.Core.NuspecCoreReaderBase…ctor(Stream stream, Boolean leaveStreamOpen)
at NuGet.Protocol.LocalPackageFileCache.GetNuspec(String manifestPath, String expandedPath)
at NuGet.Protocol.LocalPackageFileCache.<>c__DisplayClass6_1.b__1()
at System.Lazy1.CreateValue() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Lazy1.get_Value()
at NuGet.Commands.LockFileUtils.CreateLockFileTargetLibrary(LockFileLibrary library, LocalPackageInfo package, RestoreTargetGraph targetGraph, LibraryIncludeFlags dependencyType, NuGetFramework targetFrameworkOverride, IEnumerable1 dependencies, LockFileBuilderCache cache) at NuGet.Commands.LockFileBuilder.CreateLockFile(LockFile previousLockFile, PackageSpec project, IEnumerable1 targetGraphs, IReadOnlyList1 localRepositories, RemoteWalkContext context) at NuGet.Commands.RestoreCommand.BuildAssetsFile(LockFile existingLockFile, PackageSpec project, IEnumerable1 graphs, IReadOnlyList1 localRepositories, RemoteWalkContext contextForProject) at NuGet.Commands.RestoreCommand.<ExecuteAsync>d__32.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 System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at UiPath.NuGet.PackageManager.<InstallCore>d__2.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 UiPath.PackageExplorer.Core.Services.PackageInstaller.<InstallWithRootPackageAssemblies>d__3.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 System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at UiPath.Studio.Core.Services.Packaging.PackageOperationBase.<RestoreInternal>d__25.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 UiPath.Studio.Core.Services.Packaging.PackageOperationBase.<>c__DisplayClass24_0.<<Restore>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 UiPath.Studio.Core.Services.Packaging.PackageOperationBase.<Restore>d__24.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 UiPath.Studio.Core.Services.Packaging.PackageOperationRestore.<Execute>d__2.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 UiPath.Studio.Core.Services.Packaging.PackageServiceBase.<RestoreProjectAsync>d__33.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 UiPath.Studio.Plugin.Workflow.Project.BaseWorkflowProjectFactory.<InitializeNewProjectModel>d__53.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 UiPath.Studio.Plugin.Workflow.Project.BaseWorkflowProjectFactory.<OpenAsyncInternal>d__38.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 UiPath.Studio.Plugin.Workflow.Project.BaseWorkflowProjectFactory.<OpenAsync>d__37.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 UiPath.Studio.Core.Services.PersistableServiceBase3.d__19.MoveNext()
— End of inner exception stack trace —
at UiPath.Studio.Core.Services.PersistableServiceBase3.<OnOpenAsync>d__19.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 UiPath.Studio.Core.CommonServices.ProjectServiceBase.<OnOpenAsync>d__38.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 UiPath.Studio.Core.Services.PersistableServiceBase3.d__10.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 UiPath.Studio.Shell.Services.OpenCloseCommandsService.d__18.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 UiPath.Studio.Shell.Services.OpenCloseCommandsService.d__17.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 UiPath.Studio.Shell.Services.OpenCloseCommandsService.d__21.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 UiPath.Studio.Shell.ViewModels.StartPageViewModel.d__26.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 UiPath.Studio.Shared.MVVM.Commands.TaskCommand`3.d__35.MoveNext()
— End of stack trace from previous location where exception was thrown —
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<>c.b__6_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 -2146233088

[Palaniyappan]

Buddy @Ramathilagam

This could help buddy for sure… it worked
Error: '.', Hexadecimal value 0X00, is an invalid character Line 1 Position 1 While launching REFramework(Robotic Enterprise Framework)

Cheers

[Ramathilagam]

I try that option but it didn’t worked.

[loginerror (Maciej Kuzmicz)]

Hi @Ramathilagam

Does this happen for new projects as well?

See also this solution:

error:Hexadecimal value 0x00 is an invalid character. Line1,Position 1

Hi , I had the same issue. Below are the steps I followed and it got resolved. 1.) C:\Users\XXXX\AppData\Roaming\NuGet -> Removed NuGet.Config & nugetorgadd.trk 2.) Downloaded and installed Nuget.exe from https://www.nuget.org/downloads (after installataion Nuget.Config file will regenerate in above path) 3.) Reinstalled Uipath Community edition 4.) Opened the Xaml file. Thats it! It working now. Please try!

[Ramathilagam]

Yes … am getting for new project as well as existing project also.

[Ramathilagam]

any help on this much appreciated

[loginerror (Maciej Kuzmicz)]

I would strongly advise you to do a clean installation as per instructions from this post:

About the inability to open older versions using Community Edition

Hi @Jeremy_zeng Welcome to our UiPath Forum! Could you try to reinstall your Studio? You can follow these steps: Also, following this post, it seems that some registry keys might have become corrupted: But I would only try to do anything with them if the first solution didin’t work.

If you are using the Community Edition, then feel free to use redownload the latest version 2019.5 from our Cloud Platform (Resources tab)

It might also be that some security software is blocking access to some crucial UiPath files.

[Ramathilagam]

As per instructions I have reinstalled the uipath and now it is working properly.

Thanks all for information and time

[Saitken17 (Steven Aitkemn)]

Hi,

We had this issue before discovering that a Merge conflict had been inserted into one of our XAML files.
Just in case anyone else has this same issue.

Thanks