We'd like to using Project application for progress management in our company. But, We couldn't   get the information about how to use the "Project application", such as operating manual.

So then, we actually tried to use our Odoo 8 . Then, the error message was popup as below.

Bad Configuration!

 "Please define product and product category property account on the related employee."

The above error i am getting while updating the work summary, can some one help me