InvalidCastException: Cannot cast from source type to destination type.

Questions & Answers
1

I’m having a huge issue, as a unity noob i’ve looked over the already completed answers but I have no idea how to apply what fixes they’ve found to what I’m doing.

This is my code

using UnityEngine;
using System.Collections;

public class gameMaster : MonoBehaviour {
 	public static gameMaster gm;
	
 	void Start () {
 		if (gm == null) {
 			gm = GameObject.FindGameObjectWithTag ("GM").GetComponent<gameMaster>();
 		}
 	}
 	public Transform playerPrefab;
 	public Transform spawnPoint;
 	public float spawnDelay = 2;
    public GameObject spawnPrefab;
	
 	public IEnumerator RespawnPlayer () {
 		yield return new WaitForSeconds (spawnDelay);
	
 		Instantiate (playerPrefab, spawnPoint.position, spawnPoint.rotation);
 		GameObject clone = Instantiate (spawnPrefab, spawnPoint.position, spawnPoint.rotation) as GameObject;
 		Destroy (clone, 3f);
 	}
 	public static void KillPlayer (Player player) {
 		Destroy (player.gameObject);
 		gm.StartCoroutine(gm.RespawnPlayer());
 
 }
}

and this is the error

InvalidCastException: Cannot cast from source type to destination type.
UnityEngine.Object.Instantiate[GameObject] (UnityEngine.GameObject original, Vector3 position, Quaternion rotation) (at C:/buildslave/unity/build/Runtime/Export/UnityEngineObject.cs:207)
gameMaster+<RespawnPlayer>c__Iterator0.MoveNext () (at Assets/gameMaster.cs:21)
UnityEngine.SetupCoroutine.InvokeMoveNext (IEnumerator enumerator, IntPtr returnValueAddress) (at C:/buildslave/unity/build/Runtime/Export/Coroutines.cs:17)

Thank you for helping, i know this is probably a stupid noob mistake but, I have to learn somehow.

2

Try this instead :

GameObject clone = (GameObject) Instantiate (spawnPrefab, spawnPoint.position, spawnPoint.rotation);