Can't place conditional breakpoint on an array

An array has no single value associated with it. This error has the following cause and solution:

• You tried to set a conditional breakpoint (sometimes called a watchpoint) that would suspend program execution when the value of a whole array changed.

  Set the conditional breakpoint on a specific element of the array.

For additional information, select the item in question and press F1 (in Windows) or HELP (on the Macintosh).