CODEWITHSUNDEEP
unity-game-engine
kayra yorulmaz
kayra yorulmaz

Reputation: 67

ArgumentException: GetComponent requires that the requested component 'GameObject' derives from MonoBehaviour or Component or is an interface

I tried to make a system so that it would analyse all of the children of a given parent and based on one of the children whom is active, decide upon what the forward and right of that child is:

        Vector3 camF = new Vector3(0,0,0);
        Vector3 camR = new Vector3(0,0,0);
        //Assign active camera to current cam.
        GameObject[] cameras = GetComponentsInChildren<GameObject>();
        foreach (GameObject currentCam in cameras)
        {
            if (currentCam.activeInHierarchy)
            {
                camF = currentCam.transform.forward;
                camR = currentCam.transform.right;
            }
        }

While the game does boot, I cannot move my character, and keep on getting this error message:

ArgumentException: GetComponent requires that the requested component 'GameObject' derives from MonoBehaviour or Component or is an interface.
UnityEngine.GameObject.GetComponentsInChildren[T] (System.Boolean includeInactive) (at <58a34b0a618d424bb5fc18bb9bcdac20>:0)
UnityEngine.Component.GetComponentsInChildren[T] (System.Boolean includeInactive) (at <58a34b0a618d424bb5fc18bb9bcdac20>:0)
UnityEngine.Component.GetComponentsInChildren[T] () (at <58a34b0a618d424bb5fc18bb9bcdac20>:0)
PerspectiveControls.Update () (at Assets/Scripts/Character/PerspectiveControls.cs:32)

Upvotes: 0

Views: 8178

Answers (1)

Onurcan Onder
Onurcan Onder

Reputation: 512

The problem is you're using GetComponent method but GameObject is not a component. On the other hand, transform contains all the children. So, in order to get children Transforms, you can use this:

foreach (Transform child in transform)

And in order to reach the GameObject, you can do this:

child.gameObject

Upvotes: 3

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