What causes Error 451?

Question

Visual Basic

I'm not an expert in VBA , but I had to face it. I don't understand anything. Normal plPath.Coordinates array, but I can't get its first element.

MsgBox TypeName(plPath.Coordinates)   ' Double
MsgBox UBound(plPath.Coordinates)   ' 7
MsgBox IsArray(plPath.Coordinates)   ' True
MsgBox plPath.Coordinates(0)   ' Ошибка 451:  Property let procedure not defined and property get procedure did not return an object

When tracing in Watch, the same thing is shown. I don't get it at all, how come?

Answer 1

In VBA, you can declare in the code - from which element the array numbering will begin:
Option Base 1
Check if there is such a line in the code. In this case, the numbering starts from 1.