If size of cube >2 ??

[Hanish-B]

For the 3x3x3 cube, GUI is rendering, but there is no solution(steps) for it!
Scramble moves and hash is working fine but after enter it is giving error as below:
Traceback (most recent call last):
File "C:\Users\hanis\CubeAI\main.py", line 101, in
ai(args.a, args.n, args.s, heuristic)
File "C:\Users\hanis\CubeAI\main.py", line 63, in ai
path = ai.solve()
File "C:\Users\hanis\CubeAI\AIs.py", line 264, in solve
bound = self.heuristic(self.cube)
File "C:\Users\hanis\CubeAI\Heuristic.py", line 52, in manhattanDistance
return myHeuristic.scoreCube(cube)
File "C:\Users\hanis\CubeAI\Heuristic.py", line 65, in scoreCube
score = score + myHeuristic.scorePiece(cube, i)
TypeError: unsupported operand type(s) for +: 'int' and 'NoneType'

Does your code limited to 222 cube??