Cannot create unknown type - Package related

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1

Hi All! i have deployed a project (includes mail processing, OCR etc) in a QA server and everything works fine. i uploaded the same package to Prod Orchestrator and while running the process, the Robot gives the following error:

An error appeared while executing DACH_Return_Request_Processing_Prod
Error message: Cannot create unknown type '{http://schemas.microsoft.com/netfx/2009/xaml/activities}OutArgument({http://schemas.uipath.com/workflow/activities}BusinessRuleException)'.
RemoteException wrapping System.Xaml.XamlObjectWriterException: Cannot create unknown type '{http://schemas.microsoft.com/netfx/2009/xaml/activities}OutArgument({http://schemas.uipath.com/workflow/activities}BusinessRuleException)'.
at System.Xaml.XamlObjectWriter.WriteStartObject(XamlType xamlType)
at System.Xaml.XamlWriter.WriteNode(XamlReader reader)
at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)
at System.Activities.XamlIntegration.FuncFactory1.Evaluate() at System.Activities.DynamicActivity.OnInternalCacheMetadata(Boolean createEmptyBindings) at System.Activities.Activity.InternalCacheMetadata(Boolean createEmptyBindings, IList1& validationErrors)
at System.Activities.ActivityUtilities.ProcessActivity(ChildActivity childActivity, ChildActivity& nextActivity, Stack1& activitiesRemaining, ActivityCallStack parentChain, IList1& validationErrors, ProcessActivityTreeOptions options, ProcessActivityCallback callback)
at System.Activities.ActivityUtilities.ProcessActivityTreeCore(ChildActivity currentActivity, ActivityCallStack parentChain, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList1& validationErrors) at System.Activities.ActivityUtilities.CacheRootMetadata(Activity activity, LocationReferenceEnvironment hostEnvironment, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList1& validationErrors)
at System.Activities.Hosting.WorkflowInstance.ValidateWorkflow(WorkflowInstanceExtensionManager extensionManager)
at System.Activities.Hosting.WorkflowInstance.RegisterExtensionManager(WorkflowInstanceExtensionManager extensionManager)
at System.Activities.WorkflowApplication.EnsureInitialized()
at System.Activities.WorkflowApplication.Enqueue(InstanceOperation operation, Boolean push)
at System.Activities.WorkflowApplication.SimpleOperationAsyncResult.Run(TimeSpan timeout)
at System.Activities.WorkflowApplication.BeginRun(AsyncCallback callback, Object state)
at UiPath.Executor.RobotRunner.d__83.MoveNext()

bot the server configurations are the same. on analysing, i found out that the dependent packages for the project weren’t being downloaded. there are like 14 dependent packages, but only 2 of them are being downloaded along with the process folder.

i checked proxy, firewall etc and all the necessary URLs like for the orchestrator, nuget.org, gallery.uipath.com etc are whitelisted.

i tried to manually copy all the necessary packages from the QA machine and tried to run the process but yet it failed with the very same error. i am unable to find a solution for this. your help/ suggestions/ solutions highly appreciated. thanks!

2

Hi All! i have deployed a project (includes mail processing, OCR etc) in a QA server and everything works fine. i uploaded the same package to Prod Orchestrator and while running the process, the Robot gives the following error:

An error appeared while executing DACH_Return_Request_Processing_Prod
Error message: Cannot create unknown type '{[http://schemas.microsoft.com/netfx/2009/xaml/activities}OutArgument({http://schemas.uipath.com/workflow/activities}BusinessRuleException)’](javascript:;).
RemoteException wrapping System.Xaml.XamlObjectWriterException: Cannot create unknown type '{[http://schemas.microsoft.com/netfx/2009/xaml/activities}OutArgument({http://schemas.uipath.com/workflow/activities}BusinessRuleException)’](javascript:;).
at System.Xaml.XamlObjectWriter.WriteStartObject(XamlType xamlType)
at System.Xaml.XamlWriter.WriteNode(XamlReader reader)
at System.Xaml.XamlServices.Transform(XamlReader xamlReader, XamlWriter xamlWriter, Boolean closeWriter)
at System.Activities.XamlIntegration.FuncFactory 1.Evaluate() at System.Activities.DynamicActivity.OnInternalCacheMetadata(Boolean createEmptyBindings) at System.Activities.Activity.InternalCacheMetadata(Boolean createEmptyBindings, IList 1& validationErrors)
at System.Activities.ActivityUtilities.ProcessActivity(ChildActivity childActivity, ChildActivity& nextActivity, Stack 1& activitiesRemaining, ActivityCallStack parentChain, IList 1& validationErrors, ProcessActivityTreeOptions options, ProcessActivityCallback callback)
at System.Activities.ActivityUtilities.ProcessActivityTreeCore(ChildActivity currentActivity, ActivityCallStack parentChain, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList 1& validationErrors) at System.Activities.ActivityUtilities.CacheRootMetadata(Activity activity, LocationReferenceEnvironment hostEnvironment, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList 1& validationErrors)
at System.Activities.Hosting.WorkflowInstance.ValidateWorkflow(WorkflowInstanceExtensionManager extensionManager)
at System.Activities.Hosting.WorkflowInstance.RegisterExtensionManager(WorkflowInstanceExtensionManager extensionManager)
at System.Activities.WorkflowApplication.EnsureInitialized()
at System.Activities.WorkflowApplication.Enqueue(InstanceOperation operation, Boolean push)
at System.Activities.WorkflowApplication.SimpleOperationAsyncResult.Run(TimeSpan timeout)
at System.Activities.WorkflowApplication.BeginRun(AsyncCallback callback, Object state)
at UiPath.Executor.RobotRunner.d__83.MoveNext()

bot the server configurations are the same. on analysing, i found out that the dependent packages for the project weren’t being downloaded. there are like 14 dependent packages, but only 2 of them are being downloaded along with the process folder.

please let me know the solu?

3

Hi @venkatarao ,

this generally happens when there is UiPath Package dependency mismatch between production Env. and QA Env. Try once opening the Code in prod vm if possible and check for dependencies which do not match those can be imported from QA region.

Also @loginerror , can help you further on this.

Thanks,
Shikhar

4

We don’t have studio in prod and test servers, we have only robot

the code working our vms , but not servers

5

could you please let me know is their any other solution