title: Godot: get_node: Node not found: /root/MemoryGame
body: <p>So, I'm new to Godot and made my first two projects. The first one is a Platformer game, the 2nd one is a Memory Card Game. Both games work fine when I run them separately.
  Yesterday, I got an idea to put the Memory Card Game into the Platformer Game, so when I interact with some NPCs or enemies the Memory Game will launch as a mini-game. But...</p>
  <p>When I try to run my Platformer Game with the Memory Game inside and click a card I get an error: <em>&quot;get_node: Node not found: /root/MemoryGame&quot;</em>
  I think the problem is this code in my <em>&quot;Card.gd&quot;: &quot;get_node('/root/MemoryGame').chooseCard(self)&quot;</em> .</p>
  <p><strong>Here is a short video to show you the problem:</strong> <a href="https://youtu.be/skAzwJE_O-0" rel="nofollow noreferrer">https://youtu.be/skAzwJE_O-0</a></p>
  <p>So it seems like the main platformer game scene (Level1) cannot find the &quot;MemoryGame&quot; file or any of its children. I even tried to autoload the MemoryGame file but it didn't help.</p>
  <p><a href="https://i.stack.imgur.com/w3Ei4.jpg" rel="nofollow noreferrer">Card code</a>
  <a href="https://i.stack.imgur.com/ABONj.jpg" rel="nofollow noreferrer">MemoryGame code</a></p>