• DIRECTION must contain one element for each sorting variable.

Posted: **Thu Feb 09, 2017 9:31 am**

DIRECTION must contain one element for each sorting variable.

Posted: **Tue Dec 29, 2020 8:26 pm**

solution :

You can not use any parameter for DIRECTION parameter. Just use 'ascend' or 'descend'.

DIRECTION must contain one element for each sorting variable.