GameObject is already being activated or desactivated

Question

When I jump into the moving platform they show my this error.

 void OnCollisionEnter2D(Collision2D other)
     {
         if (other.transform.tag == "MovingPlatform")
         {
             transform.parent = other.transform;
         }
     }
 
     void OnCollisionExit2D(Collision2D other)
     {
         if (other.transform.tag == "MovingPlatform")
         {
             transform.parent = null;
         }
     }

The error is this line of code:

 transform.parent = null;

Answer 1

Best Answer

Answer by haizathaneefa · Jun 30, 2020 at 03:44 AM

Several things you could do first is remove the OnCollisionEnter and have a debug log on your OnCollisionExit to check if it really go through. Debug.Log is a really powerful to help you figure out what is really going on.

From what you told, the gameobject doesnt have a parent to begin with. It might be because two functions are firing at the same time.

Add comment · Show 2 · Share

Sayden96 · Jun 30, 2020 at 09:51 AM 0

Share

I see the problem, when my Player crouch, active the function OnCollisionExit in the same time the function OnCollisionEnter and this produce the error to GameObject Active or Desactive.

Sayden96 · Jun 30, 2020 at 12:19 PM 0

Share

I solved the problem finally, thank you.

Answer 2

Answer by CodesCove · Jun 29, 2020 at 08:30 PM

On possible cause: This error is shown if you are trying to set the parent more than once in the same frame. So the Enter and Exit might be happening in the same frame (for some reason).

Add comment · Show 2 · Share

Sayden96 · Jun 30, 2020 at 01:50 AM 0

Share

This error is caused specifically for change collider when my player crouch in a moving platform. I use setActive true or false in case when my player execute the action for crouch. I'm lose my hope to fix this.

Sayden96 · Jun 30, 2020 at 12:20 PM 0

Share

I solved the problem finally, thank you for respond.

GameObject is already being activated or desactivated

2 Replies

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions