Attribute name must contain word characters only

Question

I'm creating a profile form using gii and after doing the gii part and when I open the page for creating the form and I click on the "Creating Profile" it shows up with this error:

Invalid Parameter – yii\base\InvalidParamException
Attribute name must contain word characters only.

and this is the photo of the associated table in the db. phpmyadmin table view

if you needed anymore informations just let me know.

Answer 1

In your table You have

 father-s_name  

the - is not allowed in yii2 field naming convention

use

 father_s_name  or fathers_name