[3.3.2]TypeError: Can’t learn properties of null (studying ‘top’) of SpriteAtlas Sp – Cocos Creator

TypeError: Can’t learn properties of null (studying ‘top’)
at ReelItemAni.MakePixelPerfect (ReelItemAni.ts:141:110)
at ReelItemAni.replace (ReelItemAni.ts:45:37)
at component-scheduler.ts:281:35
at ReusableInvoker._invoke (component-scheduler.ts:233:13)
at ReusableInvoker.invoke (component-scheduler.ts:195:14)
at ComponentScheduler.updatePhase (component-scheduler.ts:480:28)
at Director.tick (director.ts:746:37)
at callback (recreation.ts:734:26)

After i run this system this error seems. The “top” property is “null” on this methodology:

public MakePixelPerfect(){
this.sprite.sizeMode = 0;
this.sprite.node.getComponent(UITransform).width = this.nWidth;
this.sprite.node.getComponent(UITransform).top = Math.ground(this.nWidth * this.sprite.spriteFrame.top / this.sprite.spriteFrame.width);
}

I don’t know why. Please assist me. Thanks!

Solely the code can’t see the issue, you’ll be able to present your demo for individuals who see it that can assist you.

I can’t ship video, so i ship some image about my error:

.

I don’t know the place this error is coming from, this methodology or file .plist “iconterran”
Can anybody assist me with the reply?Thanks!

You’ll be able to breakpoint right here to see if the spriteFrame is empty.