Not enough computing power

I am simply trying to mesh but it says there is not enough computing power. It is a very simple drawing where it is a box with 2 holes. I want air to enter from one inlet and exit the other inlet.

Hi @TheKelvinLim,

can you share the project as well as the message as a screenshot with us? Would help a bit and we can identify the issue faster. Thanks a ton!

Jousef