This expression is typed incorrectly, or it is too complex to be evaluated. For example, a numeric expression may contain too many complicated elements. Try simplifying the expression by assigning parts of the expression to variables. (Error 3071)

Possible causes:

• You typed an expression that has invalid syntax. For example, an operand or operator may be missing, you may have typed an invalid character or comma, or you may have typed text without enclosing it with quotation marks ( " ). Check the expression to make sure you typed it correctly.
• You typed an expression that is too complex. For example, a numeric expression may contain too many complicated elements. Try simplifying the expression by assigning some parts to variables.