An error about LPAstar

[guest-oo]

Traceback (most recent call last):
File "C:\Users\user\Desktop\A-star-improve\PathPlanning-master\PathPlanning-master\Search_based_Planning\Search_2D\LPAstar.py", line 256, in
main()
File "C:\Users\user\Desktop\A-star-improve\PathPlanning-master\PathPlanning-master\Search_based_Planning\Search_2D\LPAstar.py", line 252, in main
lpastar.run()
File "C:\Users\user\Desktop\A-star-improve\PathPlanning-master\PathPlanning-master\Search_based_Planning\Search_2D\LPAstar.py", line 47, in run
self.ComputeShortestPath()
File "C:\Users\user\Desktop\A-star-improve\PathPlanning-master\PathPlanning-master\Search_based_Planning\Search_2D\LPAstar.py", line 87, in ComputeShortestPath
if v >= self.CalculateKey(self.s_goal) and
File "C:\Users\user\Desktop\A-star-improve\PathPlanning-master\PathPlanning-master\Search_based_Planning\Search_2D\LPAstar.py", line 142, in CalculateKey
return [min(self.g[s], self.rhs[s]) + self.h(s),
KeyError: (45, 45)

进程已结束,退出代码1