to cover old technic nodes.
-- For compatibility with old nodes and recently-changed nodes.
+minetest.register_alias("technic:rubber_tree_full", "moretrees:rubber_tree_trunk")
+minetest.register_alias("technic:rubber_leaves", "moretrees:rubber_tree_leaves")
+
minetest.register_alias("moretrees:jungletree_trunk", "default:jungletree")
minetest.register_alias("moretrees:jungletree_planks", "default:junglewood")
minetest.register_alias("moretrees:jungletree_sapling", "default:junglesapling")