link datasource and datadelegate of a UITableView to ViewController cause error 'Exc Bad Access'
<p>I try to link datasource and datadelegate of a UITableView to ViewController.
It always causes error 'Exc Bad Access'.</p>

<p>I try to locate where causes this happen by setting the breakpoint in viewDidLoad of the ViewController and RootViewController and AppDelegate, unfortunetly, no result.</p>

<p>Welcome any comment</p>
