This question has been answered by Bruno17. See the first response.
[2014-11-27 13:27:53] (ERROR @ /assets/components/migx/connector.php) Could not load class: Doodle from mysql.doodle.
Still having 'doodles' in the field packageName we want to fill the textarea-field 'schema'.
Go to the tab 'xml schema' and add this code:
Parse Schema Create xpdo-classes and maps from schema by clicking 'Parse Schema' on the tab 'Parse Schema'. and Create Table(s) Create tables from the schema by clicking 'Create Tables' on the tab 'Create Tables'. This schould create our table.