Console error: UICollectionView must be initialized with a non-nil layout parameter

Question

I\'m new to UICollectionView and I\'m following a tutorial that I found on Youtube, but i\'m stuck on an error I can\'t figure out.

When I run the app w

Answer 1

it is an error while registering the uicollectionviewcell view class. To resolve put the below line in your code:

[self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"myCell"];

Answer 2

Register Collection cell in viewDidLoad method ::

[self.collView registerClass:[mineCell class] forCellWithReuseIdentifier:@"cvCell"];

Try this after above line:

UICollectionViewFlowLayout *flow = [[UICollectionViewFlowLayout alloc] init];
[flow setItemSize:CGSizeMake(60, 60)];
[flow setScrollDirection:UICollectionViewScrollDirectionVertical];

[self.collView setCollectionViewLayout:flow];

Here, mineCell is my custom collectionViewCell or you can use [UICollectionViewCell class]directly.

Thanks.