When attempting to load new data into app I get following error (after June 2020 P3 update)

[wholelottared]

2 Errors

'Unknown Declared Definition'

'DERIVE FIELDS FROM FIELDS [SampleDate] USING [autoCalendar]'

Any help would be great!

[guilherme_hn]

Try to see if you don't miss any ";" in your code... 
I had the same problem and that's why I did.