All elements of a string concatenation must be of type 'string'. Element {0} is of type '{1}'
Previous version of the X# compiler (just like C#) allowed you to do a string concatenation of non string values. This has been disabled now.
FUNCTION Start as VOID
LOCAL sName as STRING
LOCAL iAge as LONG
sName := "John Doe"
iAge := 42
? sName + iAge // error XS9078: All elements of a string concatenation must be of type 'string'. Element 2 is of type 'int'
Console.ReadLine()
RETURN
