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via Stack Overflow by joey101937
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at Pathfinding.Grid.update(Grid.java:55)	at pkg2dgame.Game.tick(Game.java:62)	at pkg2dgame.Game.run(Game.java:104)	at java.lang.Thread.run(Thread.java:745)