Received memory warning. Level=2. Data Formatters temporarily unavailable, will re-try after a 'continue'.

Question

I am using cocos2d 0.99.4 and Xcode 4.0. so, I changed my AppDelegate in this way according to the documentation and example given in 0.99.4 version.

- (void) applicationDidFinishLaunching:(UIApplication*)application
{
    window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    [CCDirector setDirectorType:kCCDirectorTypeDisplayLink];
    CCDirector *director = [CCDirector sharedDirector];
    [director setDeviceOrientation:kCCDeviceOrientationLandscapeLeft];
    [director setAnimationInterval:1.0/60];
    [director setDisplayFPS:NO];
    EAGLView *glView = [EAGLView viewWithFrame:[window bounds]
                               pixelFormat:kEAGLColorFormatRGBA8            
                               depthFormat:GL_DEPTH_COMPONENT24_OES   
                    preserveBackbuffer:NO];

    [[CCDirector sharedDirector] setOpenGLView:glView];

    [window addSubview:glView];
    [window makeKeyAndVisible]; 

    [CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];
    gameLevel = [[NSUserDefaults standardUserDefaults] integerForKey:@"gameLevel"] ;
    gameLevel = 1;

    CCScene *scene = [CCScene node];
    CCLayer *layer = [GamewinScreen node];  
    [scene addChild :layer];

    [[CCDirector sharedDirector] runWithScene: scene];  

}  

//The method test1 is also in the app Delegate class.

 -(void)test1
{

    [[CCDirector sharedDirector] end];
    [[CCDirector sharedDirector] setOpenGLView:[[window subviews] objectAtIndex:0]];    

    CCScene *Scene = [CCScene node];
    CCLayer *Layer = [OpeningScreen node];

    [Scene addChild:Layer]; 

    [[CCDirector sharedDirector] runWithScene: Scene];
}

In GameWinScreen I have a selector @selector(goToFirstScreen),

-(void)goToFirstScreen:(id)sender
{
    [MY_DELEGATE performSelector:@selector(test1) withObject:nil afterDelay:1.0];
 }   

After playing the game for 50 minutes and more I am getting

Received memory warning. Level=1  

for more than 10 times and then
Received memory warning. Level=2

and the application is crashing. giving the following message

Program received signal:  “0”.
Data Formatters temporarily unavailable, will re-try after a 'continue'. (Unknown error loading shared library "/Developer/usr/lib/libXcodeDebuggerSupport.dylib")

Answer 1

This is cocos2d telling you that you are doing something wrong. You are calling setDirectorType on the director in goToFirstScreen, but the second time you call it there is already a director. I'm not sure why you are restarting the director. Why not just replace the scene:

-(void)goToFirstScreen:(id)sender
{
    CCScene *Scene = [CCScene node];
    CCLayer *Layer = [OpeningScreen node];
    [Scene addChild:Layer];
    [[CCDirector sharedDirector] replaceScene:Scene];
}