How to copy project from from one HD to another?

Hello,

I'm using Final Cut 10.3.4 on a late 2016 Macbook Pro running High Sierra.

I'd like to copy a FCX project file, and all the associated data from one Hard Drive to another (basically replicate the entire structure).

However, when I do so, and open the new FCX project file, Final Cut Crashes with an Error saying: "Final Cut Pro Quit Unexpectedly". I did a screen grab of the message and attached it as a Jpeg file.

Could someone point me to Information on how to Fix the Error/ do the Copy correctly?

Thanks,

Rajnesh