Prerequisites

To delete any class, the following conditions must exist in your image:

•	You must be the owner of the class.

•	The application that contains the class must be an edition.

To delete a defined class, these additional conditions must exist:

•	The defined class cannot be extended in any application.

•	The defined class cannot be subclassed in any application.

•	The defined class cannot have instances.

If the class has instances, you can remove those instances. If you are very sure you want to remove the instances, evaluate the following:

<defined class name> allInstances do: :each |

each become: nil ]

Alternatively, you can evaluate the following phrase to remove instances:

System abtScrubImage