脚本编程
大佬们可以帮我看看，这个错误怎么解决呢？
extends Node
@export var mob_scene:PackedScene
var score
func game_over():
$ScoreTimer.stop()
$MobTimer.stop()
$HUD.show_game_over()
func new_game():
get_tree().call_group("mobs", "queue_free")
score = 0
$Player.start($StartPosition.position)
$StartTimer.start()
$HUD.update_score(score)
$HUD.show_message("Get Ready")
func _on_MobTimer_timeout():
var mob = mob_scene.instantiate()
var mob_spawn_location = get_node(^"MobPath/MobSpawnLocation")
mob_spawn_location.progress = randi()
var direction = mob_spawn_location.rotation + PI / 2
mob.position = mob_spawn_location.poisition
direction += randf_range(-PI / 4,PI / 4)
mob.rotation = direction
var velocity = Vector2(randf_range(150.0,250.0),0)
mob.linear_velocity = velocity.rotated(direction)
add_child(mob)
func _on_ScoreTimer_timeout():
score += 1
$HUD.update_score(score)
func _on_StartTimer_timeout():
$MobTimer.start()
$ScoreTimer.start()
错误是：Invalid get index 'poisition' (on base: 'PathFollow2D').