Many elements depend on (need) other elements

The Delete Dependents dialog is a warning to you that, if you want to delete an element, you will also delete one or more other elements.

You can:

•Delete element and Dependents- click the button

OR

•Cancel Delete - click the button

For example:

When you add a Pin-Joint, you select two Points in two different Parts.

If you want to delete the one of the Points that needs the Pin-Joint, you are warned that you also delete the Pin-Joint.