Error message "An error has occured: Object reference not set to an instance of an object" appears when running VMWare activities in UiPath Studio 2019.10.x and 2020.4.x .
Issue Description: Error message “An error has occured: Object reference not set to an instance of an object” appears when running VMWare activities in UiPath Studio 2019.10.x and 2020.4.x:
But same workflow runs successfully in some other machines.
Root Cause: This is because the trusted root CA certificates from vSphere is not installed on the machine where the Robot is running.
Resolution: Install the trusted root CA certificates from vSphere on the machine where the Robot is running, as shown below,