在Swift 3中使用xib将集合视图标头出队时会崩溃吗？

Question

我在这里使用自定义集合视图流布局，并且使用xib成功加载了单元格，而使用xib加载标头时却崩溃了，谁能帮助我这是怎么回事？

这是我的视图加载了代码

 let cellNib = UINib(nibName: "searchHistoryCollectionViewCell", bundle: nil)
        self.searchCollectionView.register(cellNib, forCellWithReuseIdentifier: "hotSearchCell")
        let headerNib = UINib(nibName: "searchSectionHeaderCollectionReusableView", bundle: nil)
        self.searchCollectionView.register(headerNib, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: "searchHeader")

这是我的收藏夹视图头代码

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {
        return CGSize(width: collectionView.frame.width, height: 50) //add your height here
    }
    func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
        if indexPath.section == 0 {
            let header = searchCollectionView.dequeueReusableSupplementaryView(ofKind:UICollectionElementKindSectionHeader, withReuseIdentifier: "searchHeader", for: indexPath) as! searchSectionHeaderCollectionReusableView
            header.backgroundColor =  #colorLiteral(red: 0.9578801208, green: 0.9578801208, blue: 0.9578801208, alpha: 1)
            header.hotSearchLabel.text = " Hot Search"
            header.deleteButton.isHidden = true
            return header
        }
        else {
            let header = searchCollectionView.dequeueReusableSupplementaryView(ofKind: UICollectionElementKindSectionHeader, withReuseIdentifier: "searchHeader", for: indexPath) as! searchSectionHeaderCollectionReusableView
            header.backgroundColor =  #colorLiteral(red: 0.9578801208, green: 0.9578801208, blue: 0.9578801208, alpha: 1)
            header.hotSearchLabel.text = " Search History"
            header.deleteButton.isHidden = false
            header.deleteButton.addTarget(self, action: #selector(clearHistoryData), for: .touchUpInside)
            return header
        }
    }

这是我的xib图像

  

*由于未捕获的异常而终止应用程序   “ NSInternalInconsistencyException”，原因：“无法在其中加载NIB   捆绑包：'NSBundle   /Users/ewall-mac-2/Library/Developer/CoreSimulator/Devices/1DF7324A-FFEA-47B7-B6C3-C03A09B80B7B/data/Containers/Bundle/Application/B1132E40-14E6-421C-BBCE-3BE142C82CFB/My.app（已加载）'，名称为“ searchSectionHeaderCollectionReusableView”   * 首先抛出调用堆栈：