Properties not shown there Help
What is the version of UiPath are you using?
Try to download packages UiPath.UiAutomation.Activities and UiPath.System.Activities and see if this resolves the problem
In the latest release UiPath.Core.Activities package has been split into two new packages mentioned in above para
Sorry for late reply. I am using the Community Edition 18.3.1.
I have these two packages already install in my uipath. To resolve this issue I have to close my UIpath and Open it again.