Hello. I have tried to complete this Challenge a couple of times, but I keep getting the same error.

Challenge Not yet complete... here's what's wrong: 
The User standard object does not have a custom field with the API name 'Phone_UUID__c'

Any suggestions please?




 

Hello all . I am new to this and finished the first formula module:

So now when I check the challenge for the second unit in the formulas module I receive the following error which corresponds to the preveious module that I just finished:

"Challenge Not yet complete... here's what's wrong: 
There was an unexpected error in your org which is preventing this assessment check from completing: System.DmlException: Insert failed. First exception on row 0; first error: FIELD_CUSTOM_VALIDATION_EXCEPTION, Hey McFly, unless you are planning to go back in time, please update your close date' at the top of the page when triggered: []​"


I did complete this challenge which I think is correct based on my formula which I provided:

3.14159 * ( radius__c  *  radius__c )   * height__c



Can someone please help me out as I am confused to why I am receiving this error which has nothing to do with this challenge.

Thankyou in advanced
David Meats