title: popToViewController: 'NSInternalInconsistencyException', reason: 'Tried to pop to a view controller that doesn't exist.'
body: <p>My Secondview is BController *bview.
  now in this view there is 1 back button </p>
  
  <p>on click of that back button</p>
  
  <pre><code>-(IBAction)done:(id)sender
  {
  AController *aview= [[AController alloc] initWithNibName:@"AController" bundle:[NSBundle mainBundle]];
  
      NSArray *array = [self.navigationController popToViewController: aview animated:YES];
  
  }
  </code></pre>
  
  <p>AController *aview is nothing but my first view or you can say first view</p>
  
  <p>but in click of back button I'm getting exception</p>
  
  <p>** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Tried to pop to a view controller that doesn't exist.'
  2010-03-18 15:53:05.948 IChitMe[5072:207] Stack: (
      820145437,
      837578260,
      819694387,
      814928571,
      862794500,
      862794216,
      54911,
      819902607,
      861951876,
      862404412,
      819902607,
      861951876,
      861951724,
      861951668,
      861950732,
      861953932,
      861948160,
      861945748,
      861927312,
      861925524,
      858687888,
      819893547,
      819891231,
      858682228,
      861592624,
      861585968,
      10069,
      9964
  )
  terminate called after throwing an instance of 'NSException'</p>