func collectionViewContentSize in Swift3 - uicollectionview

Question

I have update my Project to Swift3 in Xcode 8 and it comes this error but I have no idea what I can make there. I have already search in google but nothing founded.
Have anyone an Idea what I can make ?
Here the Error:
Method 'collectionViewContentSize()' with Objective-C selector 'collectionViewContentSize' conflicts with getter for 'collectionViewContentSize' from superclass 'UICollectionViewLayout' with the same Objective-C selector
public func collectionViewContentSize() -> CGSize {
let numberOfSections = collectionView?.numberOfSections
if numberOfSections == 0 {
return CGSize.zero
}
var contentSize = collectionView?.bounds.size
contentSize?.height = CGFloat(columnHeights[0])
return contentSize!
}

Answer 1

I had something similar but I was overriding collectionViewContentSize()
override func collectionViewContentSize() -> CGSize {
let collection = collectionView!
let width = collection.bounds.size.width
let height = max(posYColumn1, posYColumn2)
return CGSize(width: width, height: height)
}
I Downloaded XCode 8 beta 4 today and have had to change it to:
override var collectionViewContentSize: CGSize {
let collection = collectionView!
let width = collection.bounds.size.width
let height = max(posYColumn1, posYColumn2)
return CGSize(width: width, height: height)
}