Cannot create unknown type '{http://schemas.uipath.com/workflow/activities}ForEachRow'

Help Robot
,
1

I have Studio 2020.10.4 Enterprise & Orchestrator 2020.10.5

I made a tiny change to my process and published. And now I get the error below when orchestrator commands my unattended robot to run it. I tried updating all of the packages. I removed my change and re-published, same error. I committed it to Github and pulled it to another machine and published from that machine, no luck. I was able to get it working by pulling it down to the studio running on the unattended robot machine and publishing from there. Any idea what’s going on? Thanks.

Cannot create unknown type ‘{http://schemas.uipath.com/workflow/activities}ForEachRow’.

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__89.MoveNext()

3

Could you go over these topics here, each contains the solution to this error message:
https://forum.uipath.com/search?expanded=true&q=%22Cannot%20create%20unknown%20type%22%20status%3Asolved%20order%3Alatest

It has to be something related to the Robot package feed configuration which cannot access the packages used by the process.