Missing or invalid activities

Hello everyone
I’m having a problem with a cv scope activity : Missing or invalid activities
I’m using uiautomation.activities 20.4.1

Hi @dhouha.cherif,

It could be basically any missing dependency required by your workflow. So I recommend doing a dependency update at least of UiPath.System.Activities and UiPath.UiAutomation.Activities

if doing this does not solve your problem, you may investigate which dependencies you’re missing by opening your .xaml file on a text (code) editor, the dependencies your file is expecting will show under the “AssemblyReference” section: