Example Error Text
In call to function Whatifmany, the second parameter, «xs», should evaluate to a handle, or an array in which each element is a handle, but the array passed for this parameter contains a value that is not a handle at coordinate: Time = 2012
You are calling a function that has a parameter whose declaration contains the Handle qualifier, such as one declared as:
Function WhatIfMany(y : Unevaluated ; xs : handle[I] ; xvals : references[I]; I: Index)
In this function, the second parameter expects an array of handles. The error message indicates that at least one of the elements of the array being passed to the function contains something other than a handle. Perhaps Null, a number, text, or a reference. The error message tells you the coordinate of the problematic cell to help you debug.