Hello, I am receiving the following error for the past two days, I see no much information in the forum about it. When I put the Orchestrator URL and Machine Key in the Orchestrator Settings in the Robot I keep receiving the error: UiPath Robot Error - Orchestrator URL and Machine Key are required!
If you are connecting to the Orchestrator Community Edition I would suggest start by upgrading your Studio Installation. The current Stable Version is 20.4.1
While you should still be able to connect with the version of Robot you have i believe there are some limitations with Modern vs Classic folders.
I have both Studio 19.10.4 [licensed locally] with UiRobot registered as a service as well as Studio CE 20.4.1 and ran UiRobot in user mode and have no issue connecting to Orchestrator CE with either of them.
I have not installed the MSI / Enterprise package for 20.4.1.