cant use datafixtures to load data
hello guys all the files are already here https://gist.github.com/1362607
and the error im gettin 

    thats what i get as error
    A new entity was found through the relationship 'My\BlogBundle\Entity\Article#tags' 
    that was not configured to cascade persist operations for entity:   Doctrine\Common\Collections\ArrayCollection@000000003d8f1786000000003709f23. Explicitly persist the new entity or configure cascading persist operations on the relationship. If you cannot find out which entity causes the problem implement 'My\BlogBundle\Entity\Tag#__toString()' to get a clue.  

   
                                                      
cant use datafixtures to load data
===

hello guys all the files are already here https://gist.github.com/1362607
and the error im gettin 

    thats what i get as error
    A new entity was found through the relationship 'My\BlogBundle\Entity\Article#tags' 
    that was not configured to cascade persist operations for entity:   Doctrine\Common\Collections\ArrayCollection@000000003d8f1786000000003709f23. Explicitly persist the new entity or configure cascading persist operations on the relationship. If you cannot find out which entity causes the problem implement 'My\BlogBundle\Entity\Tag#__toString()' to get a clue.  

   
                                                      