Failed to convert '4' to type 'System.String'

sayb · June 28, 2021, 6:13pm

Hello UiPath community.

I started today learning RPA on UiPath Academy, and I’ve started building the first automation.

The narrator in the tutorial has another version of StudioX, and when I try to do the same, I get an error when trying to save the workflow with Use Application/ Browser into it.

Check the screenshot:

I use Brave (100% identical to Google Chrome when it comes to extensions)
When I add the Use Application/Browser it adds a 4 in the name. It seems like is not working, even if I delete that 4.

The logs are saying this:
21.4.4+Branch.master.Sha.a8b5101efe02651274064093e9c7410fedff7696

Failed to convert ‘4’ to type ‘System.String’.

Save: RemoteException wrapping System.Xaml.XamlObjectReaderException: Failed to convert ‘4’ to type ‘System.String’. —> RemoteException wrapping System.ArgumentException: The value ‘4’ is not a valid value for the enum ‘NBrowserType’.
at System.ComponentModel.EnumConverter.ConvertTo(ITypeDescriptorContext context, CultureInfo culture, Object value, Type destinationType)
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.ConvertToValue[T](ITypeDescriptorContext context, TypeConverter converter, Object instance)
— End of inner exception stack trace —
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.ConvertToValue[T](ITypeDescriptorContext context, TypeConverter converter, Object instance)
at System.Xaml.XamlObjectReader.SerializerContext.ConvertTo[T](TypeConverter converter, Object value)
at System.Xaml.XamlObjectReader.SerializerContext.TryTypeConvertToString(TypeConverter converter, Object& value)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequenceItems(Object sourceOrValue, XamlMember property, XamlType xamlType, SerializerContext context, Boolean allowReadOnly)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequence(Object source, XamlMember property, SerializerContext context, Boolean isAttachable)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequenceItems(Object sourceOrValue, XamlMember property, XamlType xamlType, SerializerContext context, Boolean allowReadOnly)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequence(Object source, XamlMember property, SerializerContext context, Boolean isAttachable)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequenceItems(Object sourceOrValue, XamlMember property, XamlType xamlType, SerializerContext context, Boolean allowReadOnly)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForSequence(Object source, XamlMember property, SerializerContext context, Boolean isAttachable)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfoInternal(Object propertyValue, ValueSerializer propertyValueSerializer, TypeConverter propertyConverter, Boolean isXamlTemplate, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.GetPropertyValueInfo(Object propertyValue, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForReadWriteProperty(Object source, XamlMember xamlProperty, SerializerContext context)
at System.Xaml.XamlObjectReader.MemberMarkupInfo.ForProperty(Object source, XamlMember property, SerializerContext context)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, ParameterInfo methodParameters, XamlType xamlType)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.AddRecordMembers(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObjectInternal(Object value, SerializerContext context, TypeConverter converter)
at System.Xaml.XamlObjectReader.ObjectMarkupInfo.ForObject(Object value, SerializerContext context, TypeConverter instanceConverter, Boolean isRoot)
at System.Xaml.XamlObjectReader…ctor(Object instance, XamlSchemaContext schemaContext, XamlObjectReaderSettings settings)
at System.Xaml.XamlServices.Save(XamlWriter writer, Object instance)
at UiPath.Studio.Plugin.Workflow.Serializer.WorkflowXamlSerializer.SaveAsString(ActivityBuilder activityBuilder)
at UiPath.Studio.Plugin.Workflow.Validation.DesignerStateValidator.GetSaveValidationError(Boolean flushEdits)
at UiPath.Studio.Plugin.Workflow.Validation.DesignerStateValidator.ValidateForSave(Boolean flushEdits)
at UiPath.Studio.Plugin.Workflow.WorkflowHandling.DesignerWrapper.Save(String fileName)
at UiPath.Studio.Plugin.Workflow.Services.DesignerFileProjectEndpoint.<>c__DisplayClass7_0.b__0()
at UiPath.Studio.Shared.MVVM.Services.DispatcherExtensions.<>c__DisplayClass0_01.<InvokeAsync>b__0() --- 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.CoreIpc.Server.<InvokeMethod>d__22.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.CoreIpc.Server.<HandleRequest>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.CoreIpc.Server.<>c__DisplayClass4_2.<<-ctor>b__6>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.CoreIpc.IOHelpers.<WithResult>d__13.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.CoreIpc.IOHelpers.<WithTimeout>d__191.MoveNext(), HResult -2146233088

P.S. The video tutorial is here: UiPath Academy (minute 4:50) (More precise: RPA Starter → Build Your First Automation → Automation with StudioX → The video on this page at 4:50)

Thanks for your implication for helping this newbie to become better with RPA.

sayb · June 30, 2021, 8:35am

Is there anyone who can help?

NIVED_NAMBIAR · June 30, 2021, 9:06am

Hi @sayb
are u using any integer variable in the url or something else where the error is occuring?

sayb · June 30, 2021, 11:21am

Thank you for reaching out.

Here is the problem. It adds the ‘4’ into the name of the resource Use Browser

I tried:

To rename → but it gives me the same error
To open the browser differently → nothing changes

Ion_Miron · July 5, 2021, 2:54pm

Hey @sayb - Brave is not a UiPath supported browser.
In order for the extension to work properly you need to use Chrome / Edge / Firefox.

Ion_Miron · July 5, 2021, 3:41pm

What UIAutomation version are you using?
With 21.4.4 you get the following message

Which informs you that it will not work

sayb · July 5, 2021, 3:58pm

Thank you, @Ion_Miron. They say all the extensions work the same as you would have them on Google Chrome.

I use the version 21.4.4.

Next time I will use Google Chrome.
Have a great day,
Sergiu

system · July 8, 2021, 3:59pm

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.

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Failed to convert '4' to type 'System.String'

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