error CS0246: The type or namespace name 'Interactable' could not be found (are you missing a using directive or an assembly reference?)

This error message indicates that the compiler is unable to find the definition for the type or namespace called "Interactable". This could be due to one of two reasons:

1. The Interactable class is defined in another assembly or namespace, and you need to add a using directive to your code to import it. For example:

using MyAssembly.Interactions; // Assuming Interactable is defined in the Interactions namespace of the MyAssembly assembly

2. The Interactable class is not defined in your code or in any referenced assemblies. In this case, you need to create the Interactable class or obtain it from another source and add it to your project.