Can't quite understand why this isn't working.

I have:

Import Firebase

...up at the top. Followed by:

class MessageViewController: MessagesViewController
{
    
    private var messages: [Message] = []
    private var messageListener: ListenerRegistration?

And it's giving me the error:

Cannot find type 'ListenerRegistration' in scope

I checked the docs and ListenerRegistration doesn't appear to be deprecated... so why is this happening?

CodePudding user response：

ListenerRegistration is part of the FirebaseFirestore package. You will need to:

import FirebaseFirestore