and running into an issue when trying to edit App projects (both RPA app
and JS app) in Studio Web.
Error: “Could not find unattended robot for user key [UUID]”
(UiPath.Service.Orchestrator.Core.NoUserSessionException)
Full stack trace:
at UiPath.Service.SessionInfo.ThrowIfException()
at UiPath.Service.UserHost.AttendedServiceProxy.BeginOrUpdateSession(…)
at UiPath.RobotJS.UserHost.Implementation.RobotJsOperations.StartPackage(…)
UiPath Assistant is installed on macOS but hangs on the splash screen
for 10+ minutes before this error appears.
I’m trying to build an Action Center app form for a human task in a
Maestro BPMN process.
Questions:
Does the hackathon tenant include attended robot licenses?
Is there a way to build/edit App projects without a local robot connection?
Is there an alternative way to create Action Center human task forms
that doesn’t require the App designer?
The issue existing due to the robot runtime not connected. Check whether assistant and your orchestrator tanant connected with same or not.
Instead of creating UiPath apps for action center there was already prebuild we have as Action center set of activities also available. Check those once
Thanks for the response! I checked and UiPath Assistant IS connected to the correct tenant (hackathon26_064). The issue is the tenant has no attended robot license — License tab shows only ‘Licensed until 8/11/2026’ with no robot units. Also Action Center module isn’t visible in the main navigation on the hackathon tenant.
For context I’m building on UiPath Maestro BPMN (Track 2 AgentHack 2026). The BPMN has human task nodes that need Action Center forms. But: 1. Action Center module not accessible on this tenant 2. In-solution app builder needs robot license (which isn’t provisioned) 3. Standalone UiPath Apps portal apps don’t appear in the BPMN Action dropdown
Is robot license + Action Center available on hackathon tenants? Or is there a supported way to build human task forms in Maestro BPMN without these?
