pls check this : https://drive.google.com/open?id=0B_higDZ_FdFNYjNSMXJKWkZDVTQ
Can you tell me what’s wrong with my player?
Why is the player spinning itself?
this is component my player
Hi
Yes, this was a common problem with the 3.x versions of the AIPath script. You can often make it less of an issue if you increase the ‘End Reached Distance’ or ‘Slowdown Distance’ fields. It has been improved in 4.x.
However for your game I see you just have an empty playing field. Do you need pathfinding for this game? It doesn’t seem like you would need it since there are no obstacles.
thanks for ur answer 
so, i just need change from slw down distance or end reach distace ?
yes , i wanna make a traditional game like “gobak sodor” in unity.
so, i use pathfinding