Thread 1: “Invalid update: invalid number of rows in section 0. The number of rows contained in an e

Thread 1: "Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (15) must be equal to the number of rows contained in that section before the update (15), plus or minus the number of row

Putting the code tableView.deleteRows(at: [indexPath], with: .fade) in front will report the above error

correct code

 modelArr.remove(at: indexPath.row)
 tableView.deleteRows(at: [indexPath], with: .fade)

When deleting rows, the tableview will go through numberOfRowsInSection again. If the data is not deleted in the data source, the number of data will not match the number of rows and the program will crash.

Reference blog:
iOS-bug record, Thread 1: "Invalid update: invalid number of rows in section 0. xxxxx - csdn