Ion-reorder-group is not working in my ionic 4 project

Morning everyone,
I have an ionic 4 project in which i’m trying to use elements such as ion-reorder-group, ion-button …(the latests functions in ionic 4). But i have the same error everytime.
My error for example on ion-reorder-group is “ion-reorder-group” is not a known element.

Do you know how i can fix it ?
My ionic version is the latest one : 4.12.0

I have same error :unamused: