Tried to package a project, I am getting an unknown error.

Hello, I am new to Unreal Engine. So I built a condo scene. I want to export this file so people can look around and see how the rendered condo will look without using unreal engine. However, when ever I package it, I get an error saying “Packaging failed” “Error: Unknown Error”. I can’t even see what the error is, can anyone help?

Thank you so much in advance!