Opening parenthesis has no matching closing parenthesis
Explanation of error:
This formula includes an opening parenthesis that lacks a matching closing parenthesis.
Example:
'1d'+(Effort*2
In this example, the opening parenthesis lacks a matching closing parenthesis.
How to resolve this error:
Examine the formula and ensure that each opening parenthesis is matched by a closing parenthesis.
The above example could be corrected by adding a closing parenthesis after the number 2, resulting in '1d'+(Effort*2).