I'm getting a duplicate declaration of method 'dealloc' error, having tried to implement the game centre for BT quiz. This is the only error that i'm showing (besides a few deprecations). The error is at the foot of BT_viewController.m, i have: //dealloc - (void)dealloc { [super dealloc]; } @end Further up the page, i have: //GameCenter View Did Unload - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; self.gameCenterManager = nil; self.currentLeaderBoard = nil; self.currentScoreLabel = nil; } - (void)dealloc { [gameCenterManager release]; [currentLeaderBoard release]; [currentScoreLabel release]; [super dealloc]; } any ideas??

you can just delete the one way at the bottom - that's what I do and it seems to work fine I believe a "duplicate declaration" error pretty much always means that you are declaring the same method twice and you need to get rid of one of them I'm not sure why that tutorial adds a whole new dealloc method instead of adding to the one that's already there..probably just an oversight

I would say its definitely an oversight. Combine the two methods into one.

ironically, removing the one at the end of the file, causes lots of errors elsewhere :o/

are you removing this entire block of code? - //dealloc - (void)dealloc { [super dealloc]; } If you are, what errors are you seeing?

Hmm - it shouldn't.

hmmm... sorry guys... after a bit of ctrl-z action whilst distracted by the child... its all changed lol! i now get 'use of undeclared identfier 'setQuestionImage' //sets the question images -(void)setQuestionImage:(UIImage *)theImage{ [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"setQuestionImage: %@", @""]]; [self.spinner stopAnimating]; //do we round the corners? if(quizImageCornerRadius > 0){ theImage = [BT_imageTools makeRoundCornerImage:theImage:quizImageCornerRadius:quizImageCornerRadius]; } [self.questionImageView setImage:theImage]; [self.questionImageView setAlpha:1.0]; } I may have to wait until i can get a couple of qiet hours (no chance) and start it again :o/

Do you have setQuestionImage used elsewhere, like as a variable?

its used a lot in that file, such as //photo finished loading.. -(void)photoDidFinishLoading:(BT_photo *)photo{ [BT_debugger showIt:self theMessage:[NSString stringWithFormat:@"photoDidFinishLoading: %@", @""]]; [self setQuestionImage:[photo image]]; } and it isnt springing up any errors elsewhere?

Somewhere that setQuestionImage is being used incorrectly. I would look at the debug statement right before the error to get a clue as to where

So I see you are in BT_screen_quiz.m now...is everything good to go in viewcontroller.m?

Ummm... Not sure! It's pretty late here and head is spinning so will call it a night for now. Thanks for the input so far :-)

BT_viewcontroller.m is no longer showing ANY errors, except deprecated's. The only error now showing is BT_screen_quiz.m, which is the undeclared identifier detailed above.

ive moved on... i started afresh, and worked through it again. got a few errors, deleted the odd line here, //'d out a block, and the simulator is now sitting on Game Center (sandbox password) This Game is not recognised by Game Center. Presumably this is because i temporarily disable GC in itunesconnect.

You also need to have your bundle id set in Xcode and you need to have your dev certificates set as well

page 10, change to this: //Submit Score Button [finishedButtons addObject:NSLocalizedString(@"quizSubmitScore", @"Submit Score")]; Right above: //try again button... [finishedButtons addObject:NSLocalizedString(@"quizTryAgain", @"Try Again")]; above that, is //send quiz results to URL... i've //'d that block out. also, copy/pasting from the pdf document, lots of " 's seem to need deleting and retyping, which is odd.

ok, i log into gamecenter, all good. i launch my app, it says Welcome Back Trouty! all good. i take the quiz, and at the end of the last question, app crashes. bt_core/main.m int main(int argc, char *argv[]) { //return circuitguide_appDelegate as UIApplicationMain NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; int retVal= UIApplicationMain(argc,argv,@"UIApplication",@"circuitguide_appDelegate"); [pool release]; return retVal; } the 4th line, starting int retVal, Thread1:signal SIGABRT

darnit!!! delete from simulator, quit simulator, clean/build and now its working :o) for now...