[Playground Error] Unable to get image data for SKSpriteNode

Hello, I started a project using SpriteKit in Playground.
However, there's an error "Unable to get image data for SKSpriteNode"

code:

    func createPlayer(){
        player.texture = SKTexture(imageNamed: "nurse.png")
        player.size = blockSize!
        player.position = CGPoint(x: self.size.width * 0.5, y: self.size.height * 0.5)
        player.zPosition = 300
        self.addChild(player)
    }

My image name is nurse.png, it is correct

Is there something wrong?