Xcode Error on build, App freezes and crashes

[MJB27]

I don't seem to be able to add a new Scene model into Art.scnassets without getting an error after building.

Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value

/ARProductViewController.swift:145: Fatal error: Unexpectedly found nil while unwrapping an Optional value
(lldb)

I am fairly new using Xcode and can't seem to work out why I am getting this error. During build, once Ive selected and new Assets, everything freezes on the iPhone.

Any idea what I am doing wrong here? Any help would be helpful.

Thanks

[esikmalazman]

Hi @MJB27 , thank you for your interest. The app crashed due to the model file in not available or specified correctly in project. Make sure the model name is same as in assets