CV Scope Error

We’re getting the below error while using CV Scope activity. The APIKey field is empty. It was working fine until now and we started getting this error starting today. We’re using the on prem version and the documentation says that APIKey is only required for cloud customers.

“System.ArgumentException: Server API key missing or invalid. [401]
at UiPath.Core.Activities.ScopeActivity.OnFaulted(NativeActivityFaultContext faultContext, Exception propagatedException, ActivityInstance propagatedFrom)
at System.Activities.Runtime.FaultCallbackWrapper.Invoke(NativeActivityFaultContext faultContext, Exception propagatedException, ActivityInstance propagatedFrom)
at System.Activities.Runtime.FaultCallbackWrapper.FaultWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)”


Has anyone here ever encountered this error before?

hi @ys15

Check this post


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Hi ashwin,

Thanks for your response. I checked that post and it says that it’s only required for the cloud version. But we’re using on prem.

prem means premise or somewhat


Yes on-premise. We don’t use the cloud version.

Hi @ys15

It should work then. Is you scenario the below?

  • on-premise Orchestrator
  • Computer Vision used with our servers

If so, see here:

If you’d like to use CV Cloud, you’ll need to create an account on Cloud Platform whether you use Orchestrator on-prem or cloud, în order to get the API key.

It seems like you will simply need to create an account to get the API key from the Licenses page


I also got the same issue
What’s the problem: Actually UIPath has done production release from 22nd July, 2019 and forcing you to pass the Server API key property under CV Screen Scope activity, otherwise we get API key missing error.
Solution : Just create one account on and get License key and use that
to pass Api key on CV screen Scope activity


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