Experiencing a strange error when saving script

Questions & Answers
1

Trying to make my ship float up and down and it just isn’t working out, any ideas?

Error - UnityException: You are not allowed to call this function when declaring a variable. Move it to the line after without a variable declaration.

public class movementScript : MonoBehaviour {

	public GameObject shipObject = GameObject.Find ("Default");
	
	void Start () {
	}
	
	// Update is called once per frame
	void Update () {
		float playerPos = shipObject.transform.position.y;
		
		if (playerPos == 0f || playerPos <= -0.11f) {
			Vector3 upVector = new Vector3 (0.0f, 0.1f, 0.0f);
			this.transform.Translate (upVector, Space.World);
		}
		else if (playerPos >= 0.11f){
			Vector3 downVector = new Vector3 (0.0f, -0.1f, 0.0f);
			this.transform.Translate (downVector, Space.World);
		}
	}
}
2

It says it all in the error message.

public GameObject shipObject; 
 
    void Start () {
        shipObject = GameObject.Find ("Default");
    }

The problem there is, code outside of functions is executed before any unity objects are created, a call there would be meaningless.