Cannot create unknown type - From activities

I have created a bot in UiPath studio. It works fine on my system. But when I shared it with a friend who ran it via the UiPath Desktop Agent, he is facing the below error

image

What could be the issue?

Hi,

This error is usually caused by lack of activities package.
Can your friend’s machine access to internet? If there is proxy, it might need proxy settings. (The following might help you)

Regards,