trying to reload table but giving exception 'NSInvalidArgumentException'

Question

I am having a tableview which i created using iboutlet.and when i am trying to reload table it is giving this exception. Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString objectAtIndex:]: unrecognized selector sent to instance 0x5949310'

IBOutlet UITableView *tableStudent;

here is .h and .m files.

.h

IBOutlet UITableView *tableStudent;

-(IBAction)enabeluser;

.m

 -(IBAction)enabeluser{
   [tableStudent reloadData];
 }

Answer 1

your array has got released at that time you call realodData method.

Answer 2

NSInvalidArgumentException occur when you refer to non-existing object. You might have release datasource or tableview object in the class.