I am at the part of the challenge where it asks you to Update the Flow.  
1. In the Display Text component, click into the search box above the text box and then click New Resource.

I follow the steps to create the formula
Resource Type:  Formula
API Name created_or_updated
Data Type: Text
Formula:  IF({!Create_Contact}, "created", "updated")
However, when I click done, I get the following error
I cannot figure out what I am doing incorrectly.  I am sitting on the Display Text in the Confirm Screen.
Thank you.

Hi,

I am trying to complete the topic Creating a data model under the module 'Build a Conference Management App' in Trailhead. However, even after doing everything right with the speaker object. The challenge still throws an error. Did anyone else complete the challenge. 

Thank you,
Satyanarayana