Bug Report - System.Activities.statements.Assign activity throws Cannot implicitly convert type 'object' to 'string'. An explicit conversion exists (are you missing a cast?)

[sree_hari]

2021-06-24T18:30:00Z
Hello Community, I have problem with Assign activity

Issue is not showing in workflow designer

But, At Runtime, it is showing like below… But the same code working fine with multi assign activity

Message: Compilation failures occurred:

Cannot implicitly convert type 'object' to 'string'. An explicit conversion exists (are you missing a cast?)

Complete results are contained in the Data property of this exception. Please correct the errors in the source and retry the Load.

Exception Type: System.InvalidOperationException

RemoteException wrapping System.InvalidOperationException: Compilation failures occurred:

Cannot implicitly convert type 'object' to 'string'. An explicit conversion exists (are you missing a cast?)

Complete results are contained in the Data property of this exception. Please correct the errors in the source and retry the Load.
at System.Activities.XamlIntegration.ActivityXamlServices.Compile(IDynamicActivity dynamicActivity, LocationReferenceEnvironment environment)
at System.Activities.XamlIntegration.ActivityXamlServices.Load(XamlReader xamlReader, ActivityXamlServicesSettings settings)
at System.Activities.XamlIntegration.ActivityXamlServices.Load(XmlReader xmlReader, ActivityXamlServicesSettings settings)
at System.Activities.XamlIntegration.ActivityXamlServices.Load(Stream stream, ActivityXamlServicesSettings settings)
at UiPath.Executor.WorkflowLoader.LoadWorkflow(String workflowFile)
at UiPath.Executor.WorkflowRuntime.Load(String workflowFile)
at UiPath.Executor.RobotRunner.InitWorkflowApplication()
at UiPath.Executor.RobotRunner.d__86.MoveNext()

PFA .xaml file for your reference
NumberValidation.xaml (24.9 KB)

[loginerror (Maciej Kuzmicz)]

Hi @sree_hari

Thanks for reporting. Your XAML file reproduces the issue on my end as well on the latest 21.6 version.

I’ll register a ticket for our team to have a look.