Exception occurs after taking several photos

Question

My application crashes after taking several photos ( always about 5-8 times), the output information in console listed here:
2008-10-07 20:04:09.999 Schmapper[1325:20b] * -[NSConcreteMutableData count]: unrecognized selector sent to instance 0x167cb0
2008-10-07 20:04:10.031 Schmapper[1325:20b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSConcreteMutableData count]: unrecognized selector sent to instance 0x167cb0'
2008-10-07 20:04:10.060 Schmapper[1325:20b] Stack: (
808163835,
806099672,
808167517,
807899933,
807794784,
33587,
817892368,
817893624,
816439824,
816461524,
816482588,
24311,
44341,
816680684,
43269,
816688420,
816674244,
816675100,
33253,
817958924,
821010112,
821004660,
820904572,
820999608,
807795273,
812083835,
807779567,
807777675,
829004012,
816177936,
816214500,
10589,
8244
terminate called after throwing an instance of 'NSException'
I use @try block in the 'didFinishPickingImage' delegate method, but it won't goes into the exception handler, instead crashing directly. does anybody meet the same problem? how should I do to fix it?

Answer 1

thanks Rogalon,
yes it did receive memory warning , and only call the method of super class like
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
// Release anything that's not essential, such as cached data
after picking the photo, I save the image data to a temporary file and release the UIImagePickerController object. and I did check memory allocation with instruments, there is no memory leaks.
today I found that because of the UIWebView, the problem won't appear so frequently if I disable the UIWebView in the application. If I enable the UIWebView in the application, it will cause the problem above and sometimes exit with status 101. And, there are some memory leaks after enable UIWebView