Ios “是什么意思？”；没有UICollectionViewLayoutAttribute实例“；？

我的ios应用程序崩溃，出现以下异常：

void HandleExceptions(NSException *__strong):875 ERROR: uncaught exception: no UICollectionViewLayoutAttributes instance for -layoutAttributesForDecorationViewOfKindOfKind: ColorDecoratorView at path <NSIndexPath: 0x7d843ec0> {length = 3, path = 3 - 0}

但当我旋转屏幕时，会出现以下异常：

uncaught exception: layout attributes for supplementary item at index path (<NSIndexPath: 0x79ef2c80> {length = 2, path = 1 - 0}) changed from <UICollectionViewLayoutAttributes: 0x82e76830> index path: (<NSIndexPath: 0x79ebf750> {length = 2, path = 1 - 0}); element kind: (ColorDecoratorView); frame = (72 2513; 293.333 252);  to <UICollectionViewLayoutAttributes: 0x79ef9380> index path: (<NSIndexPath: 0x79ef2c80> {length = 2, path = 1 - 0}); element kind: (ColorDecoratorView); frame = (0 825; 1024 -327);  without invalidating the layout

uncaught异常：索引路径（{length=2，path=1-0}）处补充项的布局属性已从索引路径（{length=2，path=1-0}）更改；元素种类：（ColorDecoratorView）；帧=（722513；293.333252）；索引路径：（{length=2，path=1-0}）；元素种类：（ColorDecoratorView）；帧=（0825；1024-327）；不会使布局无效

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谢谢。

您正在实施此方法吗

-（UICollectionViewLayoutAttributes*）layoutAttributesForDecorationViewOfKind:（NSString*）decorationViewKind atIndexPath:（NSIndexPath*）indexPath

返回值为

包含应用于装饰视图的信息的布局属性对象。

我要说的是实现这个方法。像这样的

UICollectionViewLayoutAttributes*attrs=[UICollectionViewLayoutAttributes LayoutAttributes ForDecorationViewOfKind:decorationViewKind with indexPath:indexPath]；
attrs.frame=cgrectmake（x，x，x，x）；
返回属性

看起来您的单元格正在从集合视图中请求某些LayoutAttribute。
nsindepath似乎是[L=3，path=3]

获取indexPath.row并在cellforrowatinexpath中进一步调查。
谢谢。我已经实施了你建议的方法。但当我把模拟器从Protait旋转到scape时，我又遇到了一个新的崩溃。我已经更新了关于坠机的问题。
uncaught exception: layout attributes for supplementary item at index path (<NSIndexPath: 0x79ef2c80> {length = 2, path = 1 - 0}) changed from <UICollectionViewLayoutAttributes: 0x82e76830> index path: (<NSIndexPath: 0x79ebf750> {length = 2, path = 1 - 0}); element kind: (ColorDecoratorView); frame = (72 2513; 293.333 252);  to <UICollectionViewLayoutAttributes: 0x79ef9380> index path: (<NSIndexPath: 0x79ef2c80> {length = 2, path = 1 - 0}); element kind: (ColorDecoratorView); frame = (0 825; 1024 -327);  without invalidating the layout