I'm a begginer with Processing. I write this code:

PShape bot;

void setup() {
  size(640, 360);
  bot = loadShape("imagebot.svg");
}

void draw() {
  background(102);
  shape(bot, 110, 90, 100, 100);
  shape(bot, 280, 40);
}

But that's no works...NullPointerException. What's happened?? I need help, thank's a lot!