Brian Dunning's Error Code Reference

FileMaker Error 5

Command is invalid (for example, a Set Field script step does not have a calculation specified)

 

Comments

Christo   Christo
Nov 13, 2012
Also when you write a script in Filemaker adding a record and the SetField command has no value set to place in the field.

i.e.
Set Field [table::field], as you can see there is no value specified to enter in this field, it should be like Set Field [table::field; "Some Data"]
 
Thomas   Thomas, University of Kentucky
Oct 9, 2008
I came across this error whenever, inadvertently a user had placed two "-Update" inputs, then used DreamWeaver to edit the page. I'm guessing that DreamWeaver saw two inputs of the same name, and renamed one, causing the FileMaker error.