Attempting to use unknown date format operator.

#6015   Run-time catchable error

Attempting to use unknown date format operator.

Additional Information

For Date format operator value: 'X'.
    or
The =t format item of the X operator is not supported on this system.
    where X is either DATE or COMPILED-DATE.

Explanation

OmniMark has entered an unknown value in the operator position in a date format string.