Diagnosis
The entry you tried to delete has dependent entries.

Procedure

• To delete the entire subtree, position the cursor on the entry that is
highest in the subtree to be deleted, and choose Edit -> Selectsubtree +/-. Then delete the entries.

• If you do not want to delete the lower-level entries in the subtree,
you will have to move them somewhere else. Select the entries you wantto move and position the cursor on the entry under which you want tore-insert them. Now choose Entry -> Move.
Note
If this message is issued, but no lower-level entries are displayed,you will have to reset the date. To do this, change the key date.