I have Unity 5.1.2f1 and am importing A*PP 3.7.2 and I am getting some errors.
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(3,33): error CS0234: The type or namespace name `JsonFx' does not exist in the namespace `Pathfinding.Serialization'. Are you missing an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(114,38): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(130,40): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(165,40): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(190,43): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(204,40): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?
Assets/AstarPathfindingProject/Core/Serialization/JsonConverters.cs(251,50): error CS0246: The type or namespace name `JsonConverter' could not be found. Are you missing a using directive or an assembly reference?