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POUITableView crash gives 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [160 nan]'
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  1. POUITableView crash gives 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [160 nan]'
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    copied!<p>I have a custom table view in my app. I have implemented the "Load More" feature to the table which loads 25 rows at a time. The problem is after loading 2 times the app crashes giving 'CALayerInvalidGeometry', reason: 'CALayer position contains NaN: [160 nan]' as error on OS 4.2 and above. </p> <p>On OS below 4.2 one of the cell goes missing and there is blank space between in the middle of the table. It do not give any crash. But it still gives the error mentioned above.</p> <p>I check to see where can the division by 0 can occur in my code but i couldnt find any. Following the stack trace i fond. So i cannot even check where this exception is happening. </p> <p>Anybody have any idea ??</p> <pre><code> 0 CoreFoundation 0x020ccbe9 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x022215c2 objc_exception_throw + 47 2 CoreFoundation 0x02085628 +[NSException raise:format:arguments:] + 136 3 CoreFoundation 0x0208559a +[NSException raise:format:] + 58 4 QuartzCore 0x0182396a _ZL18CALayerSetPositionP7CALayerRKN2CA4Vec2IdEEb + 177 5 QuartzCore 0x018238b5 -[CALayer setPosition:] + 42 6 QuartzCore 0x018237cc -[CALayer setFrame:] + 763 7 UIKit 0x0073c307 -[UIView(Geometry) setFrame:] + 255 8 UIKit 0x008c718a -[UITableViewCell setFrame:] + 166 9 UIKit 0x0077aa08 -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:withIndexPath:] + 1160 10 UIKit 0x0077077f -[UITableView(UITableViewInternal) _createPreparedCellForGlobalRow:] + 75 11 UIKit 0x00785450 -[UITableView(_UITableViewPrivate) _updateVisibleCellsNow:] + 1561 12 UIKit 0x0077d538 -[UITableView layoutSubviews] + 242 13 QuartzCore 0x01828451 -[CALayer layoutSublayers] + 181 14 QuartzCore 0x0182817c CALayerLayoutIfNeeded + 220 15 QuartzCore 0x0182137c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310 16 QuartzCore 0x018210d0 _ZN2CA11Transaction6commitEv + 292 17 QuartzCore 0x018517d5 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99 18 CoreFoundation 0x020adfbb __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27 19 CoreFoundation 0x020430e7 __CFRunLoopDoObservers + 295 20 CoreFoundation 0x0200bbd7 __CFRunLoopRun + 1575 21 CoreFoundation 0x0200b240 CFRunLoopRunSpecific + 208 22 CoreFoundation 0x0200b161 CFRunLoopRunInMode + 97 23 GraphicsServices 0x02611268 GSEventRunModal + 217 24 GraphicsServices 0x0261132d GSEventRun + 115 25 UIKit 0x0071542e UIApplicationMain + 1160 </code></pre>
 

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