Why the ladybug 'failed to fly' on MAC

Hello,it’s a problem from my friend who worked on his Mac.
But it reported error when launched.
Can anyone be so kind to explain it for me?

By the way,forgive my poor English speaking(lol)

Hi - there is a dedicated forum for questions related to Ladybug and Honeybee:

That said, the defaultFolder_ input of the Ladybug component takes a path to a folder as input and not a boolean: