how we can resolve these Exceptions

Discussion in 'iOS Programming' started by rajneesh.deora, Sep 2, 2008.

  1. rajneesh.deora macrumors newbie

    Aug 19, 2008
    hi all,
    I have problem that when i click on the button then i got exceptions like

    Loading program into debugger…
    GNU gdb 6.3.50-20050815 (Apple version gdb-960) (Sun May 18 18:38:33 UTC 2008)
    Copyright 2004 Free Software Foundation, Inc.
    GDB is free software, covered by the GNU General Public License, and you are
    welcome to change it and/or distribute copies of it under certain conditions.
    Type "show copying" to see the conditions.
    There is absolutely no warranty for GDB. Type "show warranty" for details.
    This GDB was configured as "i386-apple-darwin".warning: Unable to read symbols for "/System/Library/Frameworks/UIKit.framework/UIKit" (file not found).
    warning: Unable to read symbols from "UIKit" (not yet mapped into memory).
    Program loaded.
    sharedlibrary apply-load-rules all

    here is the code for the method that call on the click of button

    -(IBAction) startTimer{
    finalDemoAppDelegate *appDeleg = (finalDemoAppDelegate *)[[UIApplication sharedApplication] delegate];
    appDeleg.timer=[NSTimer scheduledTimerWithTimeInterval: 0.2
    target: self
    selector: @selector(incrementCounter:)
    userInfo: nil
    repeats: YES];

    [self updateLabel];

    lblTimer.text=[NSString stringWithFormat:mad:"%i",time];

    I am not getting whts going to be wrong there.
    Please help me resolve this exception.
    Any help will be appreciable..

    Awaiting for your reply..
    Thanks in ADVANCE..
  2. Luke Redpath macrumors 6502a

    Nov 9, 2007
    Colchester, UK
    I imagine the error in this case is that you are passing the timer a selector for a method which doesn't exist. You are passing @selector(incrementCounter:) - note the colon implying the method takes an argument - where as your method selector will be @selector(incrementCounter).
  3. rajneesh.deora thread starter macrumors newbie

    Aug 19, 2008

    What a silly mistake is this..
    Thanks a lot :)

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