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Question by finukc · Dec 06, 2016 at 09:50 PM · c#unity 5errorsyntax-errorinvalidcastexception

InvalidCastException: Cannot cast from source type to destination type.

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.

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Answer by UnityCoach · Dec 06, 2016 at 10:25 PM

Try this instead :

 GameObject clone = (GameObject) Instantiate (spawnPrefab, spawnPoint.position, spawnPoint.rotation);
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avatar image finukc · Dec 06, 2016 at 10:53 PM 0
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It still gives the same error :/

avatar image UnityCoach finukc · Dec 07, 2016 at 02:07 AM 0
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Ah, you can't instantiate a transform component, well, you somehow can, but can't cast it to a GameObject

 public Transform playerPrefab;
 // change to:
 public GameObject playerPrefab;

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