这个错误在xcode调试器窗口中意味着什么？

[Session started at 2009-05-28 22:36:25 +0600.] 
2009-05-28 22:36:29.400 FlashCards[4440:20b] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UITableViewController loadView] loaded the "indexView" nib but didn't get a UITableView.' 
2009-05-28 22:36:29.407 FlashCards[4440:20b] Stack: (
    2517688651, 
    2422246971, 
    2517688107, 
    2517688170, 
    818121900, 
    816648934, 
    816688492, 
    816684429, 
    816681688, 
    817870076, 
    837317240, 
    837317032, 
    837315376, 
    837314643, 
    2517182914, 
    2517189668, 
    2517191928, 
    829005112, 
    829005309, 
    816175835, 
    816221412, 
    9384, 
    9238 
)

来源

2009-05-28 Rahul Vyas