Animation in cocos2d crashes - iphone

Question

I am having trouble with my game, it was running fine until i tried to add the animation, now whenever i go to shoot it crashes my game and i cant work out what is wrong with my animation code. Below i will put in all the code that causes the ninja star to shoot but as i said i believe the error is in the animation.
ccsprite Projectile is what gets shoot and what im trying to animate
- (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
if (StrategyBullet > 0) {
//SOME IF STATEMENTS
if (Strategyscore == 47) {
StrategyBullet = StrategyBullet +5;
}
if (Strategyscore == 97) {
StrategyBullet = StrategyBullet +5;
}
if (Strategyscore == 197) {
StrategyBullet = StrategyBullet +10;
}
// Choose one of the touches to work with
UITouch *touch = [touches anyObject];
CGPoint location = [self convertTouchToNodeSpace:touch];
// Set up initial location of projectile
CGSize winSize = [[CCDirector sharedDirector] winSize];
CCSprite *projectile = [CCSprite spriteWithFile:#"ninja star 1.png"];
[self addChild:projectile z:2];
{
NSString *animationName = #"UNIQUE_ANIMATION_NAME";
CCAnimation* animation = nil;
animation = [[CCAnimationCache sharedAnimationCache] animationByName:animationName];
if(!animation)
{
NSMutableArray *animFrames = [NSMutableArray array];
for( int i=1;i<=5;i++)
{
NSString* path = [NSString stringWithFormat:#"ninja star %d.png", i];
CCTexture2D* tex = [[CCTextureCache sharedTextureCache] addImage:path];
CGSize texSize = tex.contentSize;
CGRect texRect = CGRectMake(0, 0, texSize.width, texSize.height);
CCSpriteFrame* frame = [CCSpriteFrame frameWithTexture:tex rect:texRect];
[animFrames addObject:frame];
}
animation = [CCAnimation animationWithSpriteFrames:animFrames];
animation.delayPerUnit = 0.175f;
animation.restoreOriginalFrame = YES;
[[CCAnimationCache sharedAnimationCache] addAnimation:animation name:animationName];
}
if(animation)
{
CCAnimate *animAction = [CCAnimate actionWithAnimation:animation];
[projectile runAction:animAction];
}
}
projectile.position = ccp(20, winSize.height/2);
// Determine offset of location to projectile
CGPoint offset = ccpSub(location, projectile.position);
// Bail out if you are shooting down or backwards
if (offset.x <= 0) return;
// Ok to add now - we've double checked position
[self addChild:projectile];
int realX = winSize.width + (projectile.contentSize.width/2);
float ratio = (float) offset.y / (float) offset.x;
int realY = (realX * ratio) + projectile.position.y;
CGPoint realDest = ccp(realX, realY);
// Determine the length of how far you're shooting
int offRealX = realX - projectile.position.x;
int offRealY = realY - projectile.position.y;
float length = sqrtf((offRealX*offRealX)+(offRealY*offRealY));
float velocity = 480/1; // 480pixels/1sec
float realMoveDuration = length/velocity;
// collison stuff
projectile.tag = 2;
[_projectiles addObject:projectile];
StrategyBullet --;
[StrategyBulletLabel setString:[NSString stringWithFormat:#"%d", StrategyBullet]];
// Move projectile to actual endpoint
[projectile runAction:
[CCSequence actions:
[CCMoveTo actionWithDuration:realMoveDuration position:realDest],
[CCCallBlockN actionWithBlock:^(CCNode *node) {
[node removeFromParentAndCleanup:YES];
// CCCallBlockN in ccTouchesEnded
[_projectiles removeObject:node];
}],
nil]];
}
}

Answer 1

The crash is because you addChild projectile twice (my best guess). The rest looks ok, although i tend to use sprite sheets for animations as opposed to file-based frames as you do.