I am trying to calculate various fields in a subform and am hitting the above error.

The calculations work when I am in the subforms original form but when I alter the forumla for the subfield I get an error message

I have isolated a simple example that if solved I could use for the actual formulas that are more complex (but not by much)

in the original form the set variable would go

Start_Hr_num = input.Start_Hr.toLong()

that works but in the subform I am trying to use

row.Start_Hr_num = row.Start_Hr.toLong()

please help

Reuben