error cso118? help! please!

Assets/sskripte/PlayerController.cs(14,9): error CS0118: PlayerController.spriteController' is a field’ but a `type’ was expected

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour {
	
	public float gravity = 6;
	public float speed = 10;
	public float jumpPower = 10;
	
	bool inputJump = false;
	float velocity = 0;
	Vector3 moveDirection = Vector3.zero;
	CharacterController characterController;
	spriteController spriteController;
	bool lookRight = true;
	// Use this for initialization
	void Start () {
	characterController = GetComponent<CharacterController>();
		spriteController = GetComponent<spriteController>();
	}
	
	// Update is called once per frame
	void Update () {
	InputCheck();
		Move ();
		SetAnimation();
		
	}
	
	void InputCheck()
	{
		velocity = Input.GetAxis ("Horizontal") * speed;
		
		if (velocity > 0)
			lookRight = true;
		
		if (velocity < 0)
			lookRight = false;
		
				if (Input.GetKeyDown (KeyCode.Space))
		{
		inputJump = true;
		}
		else
		{
			inputJump = false;
		}
		
	}
	
	void Move()
	{
		
	if(characterController.isGrounded)
		{
			if (inputJump)
				moveDirection.y = jumpPower;
		}
		
		
		moveDirection.x = velocity;
		moveDirection.y -= gravity;
		characterController.Move(moveDirection * Time.deltaTime);
	}
	
	void SetAnimation()
	{
		
		if(velocity > 0)
		{
		    spriteController.SetAnimation(spriteController.AnimationType.goRight);		
        }
		
		if (velocity < 0)
	    {
		    spriteController.SetAnimation(spriteController.AnimationType.goLeft);
	    }
		
		if (velocity == 0)
		{
			if (lookRight)
			{
			spriteController.SetAnimation(spriteController.AnimationType.stayRight);
		}
		else
		{
			spriteController.SetAnimation(spriteController.AnimationType.stayLeft);
			}
		}
	}
}

Give the variable spriteController another name. spriteController is a type and therefore it can not be a variable name.

I also suggest you rename characterController to something else. But since it has a big first letter it does not give an error.

I would call them CC and SC, but thats how I name things.