Error could not dequeue a view of kind UICollectionElementKindCell

Question

Taking first plunge with collection views and am running into this error:

Terminating app due to uncaught exception \'NSInternalInconsistencyException

Answer 1

Swift 5

1) Make sure you have a correct deque for HEADER, you might be using the regular for normal cells.

override func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
        let header = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: headerId, for: indexPath)
        return header
    }

2) doubleCheck the registration (ViewDidLoad)

collectionView.register(HeaderCell.self, forSupplementaryViewOfKind: UICollectionView.elementKindSectionHeader, withReuseIdentifier: headerId)