Bug 'GameObject' does not contain a definition for 'activeInHierachy'

Old guy trying to learn here. =)

First real error I have run into where I can't figure out. I can't seem to figure out why this one is appearing. Any help would be appreciated.

Entire Error
Assets\Scripts\MenuManager.cs(24,21): error CS1061: 'GameObject' does not contain a definition for 'activeInHierachy' and no accessible extension method 'activeInHierachy' accepting a first argument of type 'GameObject' could be found (are you missing a using directive or an assembly reference?)

 

You have not spelled it correctly. You put

activeInHierachy

when it should be

activeInHierarchy

https://docs.unity3d.com/ScriptReference/GameObject-activeInHierarchy.html

 

I checked that out and I don't know how many times I looked at that to make sure it was spelled right even after coming here and looking at other examples and seeing that is the most common mistake.

Thank you.

 

You could simplify to:

Code (CSharp):

1.  
2. menu.SetActive(!menu.activeInHierarchy)
3.