buildindex does not exist in the current context.

I have just started using unity and I have Been using Brackeys tutorial on how to Make a game. I am using the animation system to create an event which will load a new scene using this code.

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.SceneManagement;
3. public class LevelComplete : MonoBehaviour
4. {
5.     public void LoadNextLevel ()
6.     {
7.         SceneManager.LoadScene(SceneManager.GetActiveScene(BuildIndex + 1));
8.  
9.     }
10. }
11.  

The console says:
Assets\LevelComplete.cs(7,60): error CS0103: The name 'BuildIndex' does not exist in the current context
The tutorial is 3 years old so I think unity may have changed build index works.
Any thoughts?

 

Go re-check the video. Compare closely to what you wrote. See the difference. Fix it

 

Thanks, I just found out I was meant to write it outside of the brackets and now it works.