When I run the app in xcode,it always show the case as below and my app on iphone simulator was stopped in a view,I can do nothing.Can any one tell me how to avoid this case appearing,thanks.


here are the code in warning.
(void)processCollision:(UIImageView *)bricks{
score+=10;
scoreLabel.text =[NSString stringWithFormat:@"%05d" , score];
if (ballMovement.x>0&& bricks.frame.origin.x-ball.center.x<=4) {
ballMovement.x=-ballMovement.x;
}else if(ballMovement.x<0&&ball.center.x-(bricks.frame.origin.x+bricks.frame.size.width)<=4){
ballMovement.x=-ballMovement.x;
}
if (ballMovement.y>0&&bricks.frame.origin.y-ball.center.y<=4) {
ballMovement.y=-ballMovement.y;
}else if(ballMovement.y<0&&ball.center.y-(bricks.frame.origin.y+bricks.frame.size.height)<=4){
ballMovement.y=-ballMovement.y;
bricks.alpha-=0.1;
}
}
What does it say in the console?
EDIT:
The Error:
This can be fixed by restarting your computer.