I've the following code:

Code:

- (BOOL) setNewPicturePath {
	NSString *tmpPath = [[NSString alloc] init];
	NSString *chkTmpPath = [[[NSString alloc] init] autorelease];
	NSFileManager *pictureFileManager = [[NSFileManager alloc] init];
	pictureFileManager = [NSFileManager defaultManager];
	BOOL resultFilecheck = YES;
	int fileRenameCounter = 1;
	tmpPath = @"/location/which/doesnt/really/mather";
	resultFilecheck = [pictureFileManager fileExistsAtPath:NSHomeDirectory()];
	chkTmpPath = tmpPath;
	while(resultFilecheck == YES) {
		if(fileRenameCounter > 59) {
			NSLog(@"[ERROR] Failed to create new savePicturePath");
			return NO;
		}
		// File already exists, try to create a new one and check if that file is available
		NSLog(@"[WARNING] Trying to create a new filepath because the following file already exists: %@", chkTmpPath);
		chkTmpPrefix = [NSString stringWithFormat:@"_%@.jpg", fileRenameCounter];
		chkTmpPath = [tmpPath stringByReplacingOccurrencesOfString:@".jpg" withString:chkTmpPrefix];
		pictureFileManager = [NSFileManager defaultManager];
		resultFilecheck = [pictureFileManager fileExistsAtPath:chkTmpPath;]
		fileRenameCounter++;
	}
	return YES;
}

The code above is beging executed when i click a button (it's not really the button action but within the button action, the function above is being executed).
The compiler gives no warnings/errors and the application is succesfully being executed on my iPhone 3G (2.0.1). At the moment i click on the button, the application hangs and the console in Xcode gives the error "EXC_BAD_ACCESS". I know this error is caused by a memory error. Tried everything i could find on the internet but nothing helps.

I know the error is caused at the moment the line "chkTmpPrefix = [NSString stringWithFormat:@"_%@.jpg", fileRenameCounter];" is being executed.

I hope you guys can help me with this one

Problem fixed, i changed %@ to %i. I didn't know there was a difference with string conversions.