This error appears if the function produces a result whose Data Type does not exist or is not supported in ARCHICAD.
Solution
Correct the function so that it produces a result that corresponds to an existing Data Type.
Relevant topics
Argument’s Data Type is Not Correct
If you get this error, check to see which data types are required by each argument in the Function.
Example 1: Check Required Data Types for ...
Not [NOT]
Changes False result to True and vice versa.
Syntax
NOT (Logical)
Data Types of the Arguments
True/False
Data Type of the Result
...
Data Type Cannot be Changed
For this Property, you cannot change the Data Types to one that uses model units (Length, Area, Volume, Angle). These Data Types are greyed out in ...