Failed to load module `App` in AppTests

Hi,

So I added a XCTest UnitTest folder in xcode (12.4) and tried to import my App to test some components of it.

However for seem reason I get the error

Code Block 
Failed to load module `App`

When I try to import my App
@testable import App
the App is called App as it is a generated PWA using Capacitor. I'm building for iOS.

I've looked all over this forum and StackOverflow but I have yet to see anyone with the same issue.

What am I missing here?
Anyone any ideas?

Thanks