This compiler error will occur if you try to assign a value to any of the temporary variables.
For example:
n002 = EncodeDate(1999,1,3) // not allowed
The compiler will assume that a variable is a temporary variable, and generate this message, if the variable's second character is a digit from 0 to 9. This, even if no such temporary variable exists (eg. n010101, n2be3).
See also: use of 1-9 is reserved for internal temporary variables.
Topic 108136, last updated on 18-Apr-2020