# Assigning a Parent Type to a UDT - v7.8 Ubuntu 14.04

**URL:** <https://forum.inductiveautomation.com/t/assigning-a-parent-type-to-a-udt-v7-8-ubuntu-14-04/10674>\
**Category:** Ignition\
**Created:** [October 26, 2015, 6:02pm UTC](https://forum.inductiveautomation.com/t/assigning-a-parent-type-to-a-udt-v7-8-ubuntu-14-04/10674 "2015-10-26T18:02:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![akuznia](https://avatars.discourse-cdn.com/v4/letter/a/5fc32e/32.png) [@akuznia](https://forum.inductiveautomation.com/u/akuznia)\
**Post date:** [October 26, 2015, 6:02pm UTC](https://forum.inductiveautomation.com/t/assigning-a-parent-type-to-a-udt-v7-8-ubuntu-14-04/10674/1 "2015-10-26T18:02:26Z")

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I’m using the Inductive University Challenge File project.

I created a UDT named SuperType. I gave it one memory tag property and a single parameter.

I create another UDT named SubType. When I select a Parent Type from the dropdown menu (ChooseParentType.png), nothing happens (BlankParent.png).

Where did I go wrong? I get the same error when I try to assign Compressor, Motor, or Simulator as the Parent Type as well.

 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/e/e356a3f07200a872cae38f43c3f72c24f1924a10.png)  
  
 ![](https://us1.discourse-cdn.com/inductiveautomation/original/2X/7/7e7512dd1463e9e48c361c33a19dabf9bf7a0b28.png)