using UnityEditorInternal name space on Mobile

I got an Error …

error CS0246: The type or namespace name `UnityEditorInternal’ could not be found. Are you missing a using directive or an assembly reference?

I added “using UnityEditorInternal;” already but error happend.
can’t we namespace of ‘using UnityEditorInternal’ on mobile ?

The namespaces UnityEditor or UnityEditorInternal are not included when you build for a platform. Those are only included when working in the actual UnityEditor.

For whatever reasons you needed those namespace at runtime, you’ll have to find a workaround, because that can’t be done