BI Publisher 11g Log files location

When you are developing your first versions of your reports you probably start finding that something is wrong and may not be working. Well in these situations is really important to know what is going on and find out why your report is not working.
In the new release of BI Publisher we can find error messages of our data model or report generation in a couple of log files which are located at:
BIEE_HOME\user_projects\domains\bifoundation_domain\servers\bi_server1\logs\bipublisher
References:
http://download.oracle.com/docs/cd/E14571_01/bi.1111/e13880/T526682T542464.htm