Thread 3:EXC_BAD_INSTRUCTION(code=EXC_I386_INVOP, subcode=0x0)

[qqqqqwwqqq]

我写了如下代码， 初始化的时候页面没问题， 在一个tableview上显示了几个cell， 当我删除一个cell的时候 就报标题那个错了， 求大神帮看看什么原因。

    var dataRows = [NSDictionary]()
    
    // MARK: - View lifecycle
    override func loadView()
    {
        super.loadView()
        self.title = "All Customers of Me"
        
        //Here we use a query that should work on either Force.com or Database.com
        let request = SFRestAPI.sharedInstance().requestForQuery("SELECT Id, Name, Type FROM Account");
        self.log(.Debug, msg: "Query: #records:")
        SFRestAPI.sharedInstance().send(request, delegate: self);
    }
    
    // MARK: - SFRestAPIDelegate
    func request(request: SFRestRequest!, didLoadResponse jsonResponse: AnyObject!)
    {
        self.dataRows = jsonResponse["records"] as! [NSDictionary]   //报错行
        
        self.log(.Debug, msg: "request:didLoadResponse: #records: \(self.dataRows.count)")
        dispatch_async(dispatch_get_main_queue(), {
            self.tableView.reloadData()
        })
    }